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ADVANCE A.S. (ANIMALS & SOCIETY-RESEARCH) CERT - REVIEW
QuizĀ by Yvette Ingram
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āWhich of the following was signed into effect in 1966 seeking to regulate who may possess or sell certain animals and to regulate animal living conditions?
Rights Act
Endangered Species Act
Animal Welfare Act
Lacey Act
āWhich of the following is NOT an animal rights group?
People for the Ethical Treatment of Animals (PETA)
Mercy for Animals
National Animal Interest Alliance
Local animal rights group
Which of the following was signed into effect in 1966 seeking to regulate who may possess or sell certain animals and to regulate animal living conditions?
Which of the following is NOT an animal rights group?
Which of the following is NOT a true statement about the beliefs and actions ofanimal rights groups?
Which of the following is NOT an example of common practices for lawĀ enforcement in regards to animals?
In which year was the Endangered Species Act signed into law?
Which type of animal can breed on their own but have undergone physiological or behavioral changes due to captivity?
Which act prohibits the illegal trade of any fish or wild animals which were taken,Ā possessed, transported or sold in violation of any law, treaty or regulation of theĀ United States?
Which of the following is NOT a federal law, but organizations must comply with itĀ in order to receive funding from PHSP member agencies?
What does PETA stand for?
Which animal rights activist protested animal cruelty and research in āA DogāsĀ Taleā?
Which of the following is the transplantation of living tissue from one species to another?
Which human disease is related to the simian immunodeficiency virus (SIV), which effects non-human primates?
Which of the following was discovered after testing on cats and prevents the clotting of blood?
Which act requires minimum standards of treatment and care for animals?
Who wrote against animal experimentation with his bookĀ Animal Liberation?
Who was the first to divide organisms into two groupsā plants and animals?
In the late nineteenth century, who experimented on dogs to evaluate their āconditionedā responses, like salivation?
Who suggested primates were capable of human emotions?
Surgical procedures were often first studied on which animal?
Ā Which of the following administers licenses and registration to research facilities?
Early society and accomplishments Origins Knowledge of the early prehistory of Southeast Asia has undergone exceptionally rapid change as a result of archaeological discoveries made since the 1960s, although the interpretation of these findings has remained the subject of extensive debate. Nevertheless, it seems clear that the region has been inhabited from the earliest times. Hominid fossil remains date from approximately 1,500,000 years ago and those of Homo sapiens from approximately 40,000 years ago. Furthermore, until about 7000 bce the seas were some 150 feet (50 metres) lower than they are now, and the area west of Makassar Strait consisted of a web of watered plains that sometimes is called Sundaland. These land connections perhaps account for the coherence of early human development observed in the Hoabinhian culture, which lasted from about 13,000 to 5000 or 4000 bce. The stone tools used by hunting and gathering societies across Southeast Asia during this period show a remarkable degree of similarity in design and development. When the sea level rose to approximately its present level about 6000 bce, conditions were created for a more variegated environment and, therefore, for more extensive differentiation in human development. While migration from outside the region may have taken place, it did not do so in a massive or clearly punctuated fashion; local evolutionary processes and the circulation of peoples were far more powerful forces in shaping the regionās cultural landscape. Technological developments and population expansion Perhaps because of a particular combination of geophysical and climatic factors, early Southeast Asia did not develop uniformly in the direction of increasingly complex societies. Not only have significant hunting and gathering populations continued to exist into the 21st century, but the familiar cultural sequences triggered by such events as the discovery of agriculture or metallurgy do not seem to apply. This is not to say that the technological capabilities of early Southeast Asian peoples were negligible, for sophisticated metalworking (bronze) and agriculture (rice) were being practiced by the end of the 3rd millennium bce in northeastern Thailand and northern Vietnam, and sailing vessels of advanced design and sophisticated navigational skills were spread over a wider area by the same time or earlier. Significantly, these technologies do not appear to have been borrowed from elsewhere but were indigenous and distinctive in character. Austronesian languages Austronesian languagesMajor divisions of the Austronesian languages. These technological changes may partially account for two crucial developments in Southeast Asiaās later prehistory. The first is the extraordinary seaborne expansion of speakers of Proto-Austronesian languages and their descendants, speakers of Austronesian (or Malayo-Polynesian) languages, which occurred over a period of 5,000 years or more and came to encompass a vast area and to stretch nearly half the circumference of Earth at the Equator. This outward movement of people and culture was evolutionary rather than revolutionary, the result of societal preference for small groups and a tendency of groups to hive off once a certain population size had been reached. It began as early as 4000 bce, when Taiwan was populated from the Asian mainland, and subsequently it continued southward through the northern Philippines (3rd millennium bce), central Indonesia (2nd millennium bce), and western and eastern Indonesia (2nd and 1st millennia bce). From approximately 1000 bce on the expansion continued both eastward into the Pacific, where that immense region was populated in a process continuing to about 1000 ce as voyagers reached the Hawaiian Islands and New Zealand, and westward, where Malay peoples reached and settled the island of Madagascar sometime between 500 and 700 ce, bringing with them (among other things) bananas, which are native to Southeast Asia. Thus, for a considerable period of time, the Southeast Asian region contributed to world cultural history, rather than merely accepting outside influences, as frequently has been suggested. The second development, which began possibly as early as 1000 bce, centred on the production of fine bronze and the fashioning of bronze-and-iron objects, particularly as they have been found at the site in northern Vietnam known as Dong Son. The earliest objects consisted of socketed plowshares and axes, shaft-hole sickles, spearheads, and such small items as fishhooks and personal ornaments. By about 500 bce the Dong Son culture had begun producing the bronze drums for which it is known. The drums are large objects (some weigh more than 150 pounds [70 kg]), and they were produced by the difficult lost-wax casting process and decorated with fine geometric shapes and depictions of animals and humans. This metal industry was not derived from similar industries in China or India. Rather, the Dong Son period offers one of the most powerfulāthough not necessarily the only or earliestāexamples of Southeast Asian societies transforming themselves into more densely populated, hierarchical, and centralized communities. Since typical drums, either originals or local renditions, have been found throughout Southeast Asia and since they are associated with a rich trade in exotics and other goods, the Dong Son culture also suggests that the region as a whole consisted not of isolated, primitive niches of human settlement but of a variety of societies and cultures tied together by broad and long-extant trading patterns. Although none of these societies possessed writing, some displayed considerable sophistication and technological skill, and, although none appears to have constituted a territorial centralized state, new and more complex polities were forming.Here is a transcript of a video about Narrative Writing. Generate 25 questions. Intro to Narrative Writing What is Narrative Writing? You today, I want to introduce you to the basics of narrative writing. Narrative writing is writing that tells a story. It can be real or imagined, that is, nonfiction or fiction. It has a beginning, middle, and end. That is, it includes the basic elements of a plot exposition, rising action, conflict, climax, falling action, and resolution. And it's full of interesting details. The author's purpose in writing a narrative is to entertain the reader. There are three main types of narrative writing. The first is a personal narrative when a writer shares a true story from his or her own life. We could also say this type of narrative is autobiographical. The second type of narrative is biographical when a writer shares a true story from another person's life. The third type of narrative is fictional. When a writer tells an invented story, short stories, and novels are fictional narratives. The Process of Writing a Narrative While we could add to this list, there are five important parts of a narrative that I especially want you to remember as you write your own narrative. These parts of a narrative include setting, characters, plot, point of view, and dialogue. The first part of a narrative is the setting , where, and when the narrative takes place. The setting affects both the plot and characters in your narrative, so it's important to spend some time brainstorming where, when, and in what conditions your story takes place. The second part of a narrative is the characters , the people, animals or creatures involved in a story. Remember that your story must have a protagonist, the character facing the problem, and an antagonist the character or force causing the problem. Take some time while planning your narrative to focus on your characters beyond the characters names and roles they play in the story. Think about whether you'd like them to be flat with very few character traits or round with many character traits. Also think about which characters in your story will remain static or unchanged, and which characters will be dynamic, undergoing an important change in your narrative. The third part of a narrative is the plot , the sequence of events in a narrative. Take some time to think carefully through your story's plot. How will it begin and how will it end? What conflicts will your characters encounter? What is the climax or turning point of your story? How will the problems be solved? Creating a storyboard or labeling a plot diagram are both good tools for planning your story's plot. The fourth part of a narrative is the point of view , which is the perspective from which a narrative is told. You can choose to write your narrative in first person, writing a personal narrative from your own point of view, or you can choose a character in a fictional narrative to tell your story. Another option is to write your narrative in the third person point of view, telling the story from the perspective of an unseen narrator that is not a character in the story. Finally, the fifth part of a narrative is dialogue. The words the characters speak in your story dialogue can establish the setting, show characterization, foreshadow events, or advance the action in a narrative. Dialogue brings your narrative to life. It's important to review how to punctuate dialogue, following grammatical rules for using quotation marks, commas, and other N marks such as periods and question marks. As you begin writing your narrative, I'll help you break down each step of the process. But hopefully this introduction gives you a basic understanding of what narrative writing is, and hopefully it sparks some ideas for you to begin planning your own narrative.The outdoor recreation industry represents a new economy. The leaders of this economy will need to have a deep understanding of our local natural resources and integrate the components of innovation, health, and wellness into a vision for what comes next. Everyone wins when you do the right things for the environment, the community, and the venture. We want to offer the young generation a chance to be part of the foundation we are building for adventure tourism in the emirates and the region. Adventure Tourism Is the Fastest-Growing Global Niche. What does this mean? It means that thereās plenty of room for young experts to enter the field. Itās not just the "guides" that the adventure tourism industry needs. Itās everything that goes with it, from adventure tourism accommodations to trip planners, event managers, marketing and finance directors, advertising, public relations, and communications. We want to highlight that adventure tourism requires more than just guides, and various careers within adventure tourism play a big role in attracting high-value customers, supporting local economies, and encouraging sustainable practices. The continued growth of this sector creates net positive impacts not only for tourism, but also for destination economies, their people, and their environment. 1) Understanding Tourism Tourism is one of the worldās fastest-growing industries and a major foreign exchange and employment generation for many countries. It is one of the most remarkable economic and social phenomena. 2) Understanding Adventure Tourism Adventure tourism is defined as the movement of the people from one to another place outside their comfort zone for exploration or travel to remote areas, exotic and possibly hostile areas. Adventure tourism is a type of tourism in which tourists engage in adventure activities such as trekking, climbing, rafting, scuba diving, or the likes. Adventure tourism gains much of its excitement by allowing the tourist to step outside their comfort zone. This may be from experiencing culture shock or through the performance of acts that required some degree of risk whether real or perceived. It is also about connecting with a new culture or a new landscape and being physically active at the same time. It is not only about being risky or pushing your boundaries. In fact, it is especially important to know and respect your limits while you are in an unfamiliar area. Adventure travel is a leisure activity that takes place in an unusual, exotic, remote, or wilderness destination. It tends to be associated with high levels of activity by the participant, most of it outdoors. Adventure tourists expect to experience various levels of risk, excitement, and tranquillity and be personally tested. In particular, they are explorers of unspoiled, exotic parts of the planet and also seek personal challenges. The main factor distinguishing adventure tourism from all other forms of tourism is the planning and preparation involved. 3) Definitions of Adventure Tourism Adventure tourism is a new concept in the tourism industry. The tourism industry adopted adventure tourism, but there is not any specific definition of adventure tourism. Most commentators concur that adventure tourism is a niche sector of the tourism industry, but there are many other niche sectors in tourism that have the same characteristics that overlap with adventure tourism such as ecotourism, activity tourism, or adventure travel. One of them can confuse. Adventure tourism is a complicated and ambiguous topic. Some important definitions of adventure tourism are as following: A) According to the Adventure Travel Trade Association (ATTA): āadventure tourism is a tourist activity that includes physical activity, cultural exchange, or activities in nature.ā B) According to Muller and Cleaver: āAdventure tourism is characterized by its ability to provide the tourist with relatively high levels of sensory stimulation, usually achieved by including physically challenging experiential components with the tourist experience.ā C) The Canadian Tourism Commission in 1995 defines adventure tourism as: āan outdoor leisure activity that takes place in an unusual, exotic, remote or wilderness destination, involves some form of unconventional means of transportation, and tends to be associated with low or high levels of activity.ā D) According to Sung et al: āadventure tourism is the sum of the phenomena and relationships arising from the interactions of adventure touristic activities with the natural environment away from the participantās usual place of residence area and containing elements of risk in which the outcome is influenced by the participation, setting, and the organizer of the touristās experience.ā E) According to UNWTO: ā adventure tourism can be domestic or international, and like all travel, it must include an overnight stay, but not last longer than one year.ā 4) Types of Adventure Tourism Adventure tourism has grown exponentially all over the world in recent years with tourists visiting destinations previously undiscovered. This allows for new destinations to market themselves as truly unique, appealing to those travellers looking for a rare, incomparable experience. Adventure tourism includes various activities like caving, hiking, sailing, trekking, etc. Adventure tourism is categorized into two categories: ā¢ Hard Adventure ā¢ Soft Adventure Hard Adventure Hard adventure refers to activities with high levels of risk, requiring intense commitment and advanced skills. Hard tourism includes the activities like climbing mountains/rock/ice, trekking, caving, etc. Hard adventure activities are highly risked in nature. Professional guides and advanced levels of skills are required to perform these activities. Many tourists died during climbing mountains, caving every day. Soft Adventure Soft adventure refers to activities with a perceived risk but low levels of risk, requiring minimal commitment and beginner skills; experienced guides lead most of these activities. Soft tourism includes the activities like backpacking, camping, hiking, kayaking, etc. Soft adventure activities are low-risk in nature. Professional guides lead these activities. Soft adventure is a popular category in adventure tourism as it caters to a wider audience. 5) Adventure Tourism Activities Adventure travellers are early adopters by nature, meaning they are generally more willing to try new destinations, activities, and travel products. Popular activities change rapidly, and it seems there is a new twist on an existing sport every year. Some activities have low risk and some have high. Adventure tourism activities are classified into two types: ā¢ Hard Adventure Activities ā¢ Soft Adventure Activities Hard Adventure Activities Hard adventure activities are highly risky and dangerous in nature. These activities are as the following: ā¢ Caving ā¢ Mountain Climbing ā¢ Rock Climbing ā¢ Ice Climbing ā¢ Trekking ā¢ Sky Diving Soft Adventure Activities These activities are less dangerous and risk as compared to hard adventure activities. These activities are mostly lead by professional guides. An example of these activities are: ā¢ Backpacking ā¢ Bird watching ā¢ Camping ā¢ Canoeing ā¢ Eco-tourism ā¢ Fishing ā¢ Hiking ā¢ Horseback riding ā¢ Hunting ā¢ Kayaking/sea/whitewater ā¢ Orienteering ā¢ Safaris ā¢ Scuba Diving ā¢ Snorkeling ā¢ Skiing ā¢ Snowboarding ā¢ Surfing Adventure tourism activities sit well with the environment because the natural world provides us with the resources for many of the activities that provide risk, challenge, sensory stimulus, novelty, discovery, and so on. 6) Characteristics and Features of Adventure Tourism The threefold combination of activity, nature, and culture marks adventure travel as an all-around challenge. Some unique characteristics and features of adventure tourism are as the following: ā¢ Physical activity, like involving physical exertion or psychomotor skills ā¢ Contact with nature, activities bringing contact with the natural world in general, or with specific wildlife ā¢ Contact with different cultures, i.e. people, faith, lifestyles ā¢ Journeys for example vehicle, animal, or human power ā¢ Uncertain outcomes ā¢ Danger and risk ā¢ Challenges ā¢ Anticipated rewards ā¢ Novelty ā¢ Stimulation and excitement ā¢ Exploration and discovery ā¢ Contrasting emotions 7) Adventure Tourism Supplier A tourism supply chain is the system of people, products, activities, and materials that get a product or service from its raw state through production and distribution to the consumer. As with any sector, volume discounts drive the mass price point, so major retailers primarily market select trips that sell in high volume. The supply chain for these mass tourism products is often very simple, comprising only transportation and accommodation elements. The adventure tourism supply chain is more complex. Niche products often require specializes in knowledge and operations. Adventure tourismās supply chain linkages go very deep, and this is one of the key reasons that adventure tourism delivers greater benefits at the local level. Supply chains vary from destination to destination. Without a proper supply chain, the tourism sector cannot survive. Tourism suppliers are the backbone of the tourism industry. Adventure tourism suppliers work at a different, different level like as domestic as well international level. 8) Adventure Tourism Importance and Benefits Adventure tourism is one of the fastest-growing sectors of the tourism sector, attracting high-value customers, supporting local economies, and encouraging sustainable practices. The continued growth of this sector creates net positive impacts not only for tourism, but also for destination economies, their people, and their environment. Some importance and benefits of adventure tourism are: A) Employment Generation Adventure tourism generates jobs. Adventure tourism generates directs jobs to accommodation, transportation sector, and travel agencies or tour operators. Adventure tourism also provides indirect jobs to tourism suppliers. Adventure tourism plays an important role in the generation of employment in the economy. B) Foreign Exchange Adventure tourism attracts foreign tourists on a large scale, as a result, it helps in foreign exchange generation. When tourists travel to another country, they spend a large amount of money on accommodation, transportation, and shopping. Adventure tourism generates foreign exchange and supports the economy of the host country. C) Economy Development Adventure tourism helps in the development of the host countryās economy. Adventure tourism activities directly support the economy in various forms. The more tourists, the more economic growth. D) Support Local Communities Adventure tourism helps in the development of infrastructure and supports local communities. Adventure tourism activities directly contributed to the local economy of the communities and increase local people's living standards. E) Conservation of Natural Resources Adventure tourism activities are nature-based activities. Leaders in the adventure tourism industry are dedicated to making this tourism segment as sustainable as possible. They help in the conservation of natural resources as well as culture. F) Creating Business Opportunities Adventure tourism activities create new business opportunities. Several companies specialize in helping emerging adventure tourism operators market their products. Each new adventure tourism activity creates a new business opportunity. G) Local and Foreign Investment Adventure tourism creates business opportunities; as a result, it attracts local as well as international investors. Investors invest their money in accommodation, transportation, and travel trade organization. Adventure tourism plays an important role in the economy of the host country.Continental Drift Theory. From the discussion of the rock cycle, it has been pointed out that through Earth's external and internal processes. Earth's surface is constantly changing. However, this idea of a changing environment did not conform with the belief of earlier scientists. Rather, they thought that the geographic positions of ocean basins and continents have been static since the beginning of time. It was around the 1500s when Leonardo da Vinci, upon his discovery of fossil seashells found at the high mountains of Italy, first thought of the idea that the areas where mountains are located may have been oceans in the past. Through time, other fossils of marine organisms found far above the current sea level further supported the idea that mountains were uplifted and weathering wore them down. At around the 1800s, most scientists have accepted the idea that Earth's crust is undergoing large vertical movements or uplifting. There was also evidence of possible horizontal movements, but the scientists then were not convinced about it. Alfred Wegener showed evidence of horizontal or lateral movement of the continents in his continental drift theory. According to him, the continents have drifted around the world and have once formed a giant landmass or supercontinent called Pangaea. To support his theory, Alfred Wegener presented a set of geographical, biological, and climatic evidence.Wegener's geographical evidence included the jigsaw puzzle fit of the current continents. He pointed out that the coastlines of South America and Africa seem to fit together. He also pointed the presence of mountain ranges having similar rock types and age but separated by vast oceans, like that of the folded rocks of the Caledonian mountains. The same folded rocks run through West Africa, North America, Newfoundland, Ireland, Wales, Scotland, Greenland, and Norway, all of which are now separated by the Atlantic Ocean. A geographical evidence on the similar rock types in West Africa, North America, Greenland, and Europe is found. The biological evidence came in the discovery of similar plant and animal fossils in different continents separated by oceans. The animal fossils of Mesosaurus and Lystrosaurus indicate that they were not capable of crossing the oceans to reach the other continents. If they were, the fossils should have been more widely distributed Africa, Australia, India, and South America were too large to be carried by wind. This indicates that the areas where the fossils were found were closely linked. It has also been found out that the plant only grew in areas with subpolar climate, which would indicate that the landmasses were located near the South Pole.Lastly, for his climatic evidence, Wegener discovered that a glacial period occurred during the late Paleozoic era in Southern Africa, South America, Australia, and India. The initial explanation for this event was global cooling, but it was rejected because large tropical swamps with so much vegetation were found at the same time in the Northern Hemisphere. This further supported the idea that the supercontinent was indeed near the South Pole, and the continents in Northern Hemisphere were once near the equator. The glacial period also left glacial striations, or the scratches glaciers make as they move across on the underlying bedrock, on the aforementioned continents. For such an event to happen, the continents would have to be connected. SCIENCE PIONEER. Alfred Wegener (1880-1930). Alfred Wegener was a German polar researcher, geophysicist, and meteorologist. He was known for his work on the continental drift theory. In his effort to defend his work, he went to the Greenland ice sheet where he died.Even with all the compelling evidence, the continental drift theory hardly convinced the scientific community at that time because Wegener was unable to identify a credible mechanism that drives the continental drift. He was unable to clearly explain how the continents moved and how the larger continents broke through the ocean floor. Eventually, critics of the continental drift began to accept the theory when new evidence supporting the theory was discovered. The new evidence led to a more encompassing theory the theory of plate tectonics. This theory provided a more convincing explanation as to how the continents moved. The evidence that paved the way for the theory of plate tectonics was the idea of wandering poles. Scientists began studying volcanic rocks to determine the location of the magnetic poles. When volcanic rocks crystallize, the minerals with magnetic properties align themselves parallel to Earth's magnetic field at the time the minerals were formed. This finding allowed scientists to determine the polarity of Earth's magnetic field and the magnetic inclination that showed the location of the poles. Upon studying the paleomagnetism of the rocks, geophysicists found out that rocks from various locations point to different magnetic north poles, suggesting that the poles have wandered. Since movement of magnetic poles is very unlikely, scientists have accepted the idea that the continents are indeed moving. And if the continents are moving, scientists thought that maybe the ocean basins are moving too. They also discovered that some rocks showed magnetic reversals, which led them to believe that the magnetic north pole now was not always the magnetic north pole. Seafloor Spreading. After World War II, exploration on the ocean floor became the focus of many geologic studies. It was only then that the ocean ridge system was discovered. A geologist in Princeton University named Harry Hess, along with other scientists, studied this ocean ridge system and hypothesized that the oceanic crust was moving away from the ridge. His hypothesis, known as seafloor spreading, showed that the ocean floor is split along the ridge where the magma rises to form the new ocean floor.Because of this, rocks located near the ridge are younger than those that are located magnetic polarity of Earth is also preserved in those rocks. Withe ridge scientists were able to see the magnetic reversals in the ocean floor, and they were able to make use of information to determine that the ocean floor is moving at a rate of about 10 cm per year. Plate Tectonics. Confirmation of the seafloor spreading hypothesis proved that continents are not moving above the ocean floor. Rather, it is the fragments of the lithosphere. The lithosphere is the rigid layer that is composed of the uppermost mantle and the crust that carry the continents and the ocean basins along. These fragments of the lithosphere are called plates. Underneath the lithosphere is a weaker region in the mantle known as asthenosphere that behaves like a fluid. Thus, the lithosphere floats above the asthenosphere, making it detached and free to move. This became the basis of the theory of plate tectonics. Now that it has been made clear that it is the plates which are moving, the question as to how they move remained. Sir Arthur Holmes proposed the driving force for this plate movement in 1919. He suggested that the movement in the mantle carries the plates along. It was previously discussed that Earth's interior is very hot due to the heat produced by radioactive decay. Convection takes place in the mantle, keeping the asthenosphere hot and weak. The convection currents produced in the asthenosphere are the ones carrying the lithospheric plates and making them move. However, convection currents are not enough. Mechanisms such as ridge push and slab pull aid the convection currents to slowly move the lithospheric plates. Ridge push occurs at mid ocean ridges which are higher in elevation than the surrounding trenches and abyssal plains. The new ocean floor from the ridge is hot and relatively thin. As it moves away from the ridge, it cools down and gets denser, heavier, and thicker. Below this cooling ocean floor is the asthenosphere, which is less dense. This area becomes a massive shear zone and the new ocean floor will effectively slide down the slope of the asthenosphere. When the plate collides with another plate with lesser density, the denser plate sinks and a subduction zone is formed. When the subducting plate sinks, it pulls on the rest of the plate behind it. These mechanisms explain the movement of the plates.Earth has seven major lithospheric plates that account for 94% of Earth's surface. These are the North American Plate, South American Plate, Pacific Plate, African Plate, Eurasian Plate, Indo-Australian Plate, and Antarctic Plate. These plates are constantly moving relative to the other plates. Thus, the interaction of plates occurs mostly along the boundaries. These movements are plotted using information from earthquakes and volcanic activities. There are three main types of plate boundaries: convergent, divergent, and transform boundaries Convergent boundaries are boundaries where two plates move towards each other A convergent boundary is also known as destructive margin since this is where the collision between two plates occhins. There are three types of convergence-oceanic oceanic, oceanic-continental, and continental-continental. Trenches are features of the ocean floor that are present in both oceanic-oceanic boundary and oceanic-continental boundary. Subduction occurs at the trenches, therefore, these are characterized as the deepest parts of Earth. A divergent boundary is the opposite of convergent boundary: two plates move away from each other. Divergent boundaries create new crust; thus, they are also known as constructive margins. The ocean ridge system is a divergent boundary where new ocean floor is produced as magma rises, pushing the older rocks aside.Transform boundary is also known as conservative plate margin since two plates just move past one another, neither creating nor destroying land. Earthquake epicenters are usually detected at transform boundaries because the rocks tend to break and not fold or sink, like in convergent boundaries. Evolution of the Ocean Basins. Both the movement of the plates and seafloor are responsible for the evolution of ocean basins. Along the divergent boundary where ocean ridge systems are found, magma is released and new ocean floor is created. Along convergent boundaries, the ocean floor is being destroyed. The evolution of the ocean basins started during the time when Pangaea was still present and was surrounded by the vast ocean or superocean known as Panthalassa, also called Paleo-Pacific or "old Pacific." Upon the initial break up of Pangaea into Laurasia and Gondwanaland, the Tethys Sea began to form. Then, the Eurasian and North about, forming the North Atlantic. The South Atlantic only started to form when the African Plate and South American Plate separated. The continued movement of the plates created the Himalayas at one side and separated the Pacific Ocean and Atlantic Ocean at the other side, which consequently formed the current ocean basins. Both the movement of the plates and seafloor are responsible for the evolution of ocean basins. Along the divergent boundary where ocean ridge systems are found, magma is released and new ocean floor is created. Along convergent boundaries, the ocean floor is being destroyed. The evolution of the ocean basins started during the time when Pangaea was still present and was surrounded by the vast ocean or superocean known as Panthalassa, also called Paleo-Pacific or "old Pacific." Upon the initial break up of Pangaea into Laurasia and Gondwanaland, the Tethys Sea began to form. Then, the Eurasian and North about, forming the North Atlantic. The South Atlantic only started to form when the African Plate and South American Plate separated. The continued movement of the plates created the Himalayas at one side and separated the Pacific Ocean and Atlantic Ocean at the other side, which consequently formed the current ocean basins.Continents do not immediately end at the point where the ocean meets the land. They may extend slightly into the oceans. The portion of the continent that is submerged is called continental margin. There are two types of continental margin: passive margin and active margin. A passive continental margin consists of a continental shelf, continental slope, and continental rise. It is not associated with plate boundaries; thus, there are very little tectonic activities. An active continental margin only has a continental shelf and a continental slope. It is associated with plate boundaries; thus, a main feature of this boundary is a trench. The different features of a continental margin are the following: 1. The continental shelf is the gently-sloping submerged portion of the continent. 2. The continental slope is the steep slope after the continental shelf. It is still part of the continent. 3. The continental rise is the gently-sloping area after the continental slope and before the ocean floor. 4. The trenches are the deepest parts of the ocean. These are narrow depressions caused by the subduction of the ocean floor along the convergent boundaries. 5. The mid-oceanic ridge is the mountain range system in the ocean. It is responsible for the production of new ocean floor. This is the region where new magma constantly emerges from. SCIENCE CAREER. A scientific illustrator uses art to inform and communicate complex details and concepts of science. He/She makes use of scientifically informed observations and research along with his/her technical art and aesthetic skills to make accurate representations. In Natural History, the scientific illustrators recreate how the extinct species look like by working with scientists and fossil records. Moreover, with the advances in technology, illustrators are now into 3D modelling, animation, and video making. Earth's History. All the processes that have been discussed require long periods of time to create a noticeable change on Earth's surface. You can just imagine how long it would take to create an oceanas vast as the Pacific Ocean if the ocean floor moves only at about 10 cm/year. It is then important to know the history of Earth to learn the complexities of its past and be able to use it to understand the present. Just like learning the history of a country that requires one to read a lot of books, learning the history of Earth involves studying a lot of rocks. Rocks, especially sedimentary rocks, contain a lot of information about Earth's past. It holds the key to most of the geologic processes that happened on Earth and the key to uncovering how life on Earth evolved. But these discoveries are worthless if there is no time perspective. Thus, one of the most important contributions of geologists to mankind is the geologic time scale, which holds a history that is exceedingly long.Animal Vital Signs Advance ASAnimal Behavior Advance ASCell Theory The microscopes we use today are far more complex than those used in the 1600s by Antony van Leeuwenhoek, a Dutch shopkeeper who had great skill in crafting lenses. Despite the limitations of his now-ancient lenses, van Leeuwenhoek observed the movements of protista (a type of single-celled organism) and sperm, which he collectively termed āanimalcules. ā In a 1665 publication called Micrographia, experimental scientist Robert Hooke coined the term ācellā for the box-like structures he observed when viewing cork tissue through a lens. In the 1670s, van Leeuwenhoek discovered bacteria and protozoa. Later advances in lenses, microscope construction, and staining techniques enabled other scientists to see some components inside cells. image Figure 4.3.1 : Structure of an Animal Cell: The cell is the basic unit of life and the study of the cell led to the development of the cell theory. By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory. Schleiden and Schwann proposed spontaneous generation as the method for cell origination, but spontaneous generation (also called abiogenesis) was later disproven. Rudolf Virchow famously stated āOmnis cellula e cellulaāā¦ āAll cells only arise from pre-existing cells. āThe parts of the theory that did not have to do with the origin of cells, however, held up to scientific scrutiny and are widely agreed upon by the scientific community today. The generally accepted portions of the modern Cell Theory are as follows: The cell is the fundamental unit of structure and function in living things. All organisms are made up of one or more cells. Cells arise from other cells through cellular division. The expanded version of the cell theory can also include: Cells carry genetic material passed to daughter cells during cellular division All cells are essentially the same in chemical composition Energy flow (metabolism and biochemistry) occurs within cells'Create a quiz based on this lesson: . Tenali Rama was known for his sense of humour. In fact, King Krishnadevaraya used to enjoy his witty remarks even when they were targeted at him. Here is one such story. Scene 1 One day, an Arab horse trader visited the court of King Krishnadevaraya. He had a fine horse for the king. The (Greek/Chinese/Arab/ British) trader visited the court of King Krishnadevaraya King: All of you know that I am very fond of horses. The horses in my stable are the finest indeed! Send the trader in! I always want some rare breeds of horses from across the world to add to my man collection. Trader: Good day, Your Majesty! I have brought one of the finest horses from ArabiaI request you to see the horse. I am sure you will want him for your royal stable. King: This is indeed a magnificent creature! I wish to buy this fine horse. Trader: Your Majesty, I have two more such horses with me in Arabia and it would be my pleasure to bring them to you. Trader: You are really kind and I am sure you will like ader merchant magnificent splendid/superb King: I am so happy to hear that. I agree to buy the other two horses as well Into Trader: l am grateful for your offer and I promise to return with the other two horses within a week's time. Scene 2 Months passed, but there was no sign of the trader. Worried and anxious, the king decided to take a stroll in the garden. There, he spotted Tenali Rama sitting under a tree and scribbling something on a piece of paper. King: What are you writing on this sheet of paper, Rama? Rama: Here is the paper. You can see for yourself. It is the list of names of people who can be called 'very foolish!. Rama showed the paper to the king. It was a list of names with the king's name at the top. King: My name is always on top of the list. I do know that you respect me. On the top of the list was writtenā 'List of the Biggest Fools in the World! He became furious. King: How can you call your King, 'a fool?' You will have to explain it to me. Rama: lam really sorry that I had to add you as well in the list of fools. How could your Highness trust an unknown Arab horse trader, give him a huge advance, and expect him to return? ' King: What if he really comes back? Rama: If he returns with his horses after taking so much money from you, then I will put his name as the first one. So, he will be on top of the list of fools. The king realized his mistake. His anger slowly gives way to laughter. King: You are really funny, Rama. I was very unhappy, but with your witty remark, you have defused my anger and anxiety. I love your sense of humour. Rama: Dear King, you are so good to everyone! You fail to understand that you should be good to people, but should never trust strangers. The king agreed and they walked back to the palace.