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Biology Category 5 Quiz

Quiz by Nnenna

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41 questions
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  • Q1
    Surtsey is an island located south of Iceland. The island was formed by a volcanic eruption and first appeared in 1963. The table below contains descriptions of changes in the population and diversity of species on Surtsey. Which of these lists the descriptions in the correct order of ecological succession on Surtsey?
    Question Image
    IV, III, I, II
    II, IV, I, III
    III, I, II, IV
    I, II, IV, III
    120s
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  • Q2
    The overgrowth of algae poses a major problem for coral reefs. Intensive fishing in one factor that contributes to algae overgrowth because it does which of the following?
    Inhibits the spread of pathogens in algae colonies
    Increases the competition between different algae species
    Allows more sunlight to be available to algae
    Reduces the number of organisms that feed on algae
    60s
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  • Q3
    Which of the following are missing from the food web shown above?
    Question Image
    Decomposers
    Predators
    Omnivores
    Producers
    120s
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  • Q4
    The acacia ant (Pseudomyrmex ferruginea) lives in the bullshorn acacia plant, as shown below. The acacia ant nests and feeds in the plant’s hollow thorns. The ant helps protect the bullshorn acacia by attacking insects and grazing animals that come near the plant. The relationship between the acacia ant and the bullshorn acacia is an example of which of the following?
    Question Image
    Parasitism
    Neutralism
    Mutualism
    Commensalism
    120s
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  • Q5
    The carbon cycle includes processes that release carbon into the atmosphere and places that act as carbon reservoirs. The diagram below shows both major processes that release carbon and major carbon reservoirs. Which of these disruptions would cause an excess output in the carbon cycle?
    Question Image
    A reduction in the use of fossil fuels
    Increases in marine biota
    A thickening of ocean sediments
    The destruction of terrestrial biota
    120s
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  • Q6
    The Nile River flows into the Mediterranean Sea. The Aswan High Dam contains the flow of water from the river and reduces the annual fall flooding. The floodwater is trapped behind the huge dam, allowing irrigation for agriculture. Sediments that would be washed away by the annual floods are also trapped behind the dam. The graph shows the water flow from the Nile that enters the Mediterranean Sea. How has this dam most likely affected the Mediterranean Sea ecosystem?
    Question Image
    Water trapped behind the dam causes the marine ecosystem to move inland.
    The water temperature of the sea has increased.
    Reduced nutrients from the land support fewer producers in the sea.
    The flooding in August through November causes marine life to be destroyed.
    120s
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  • Q7
    The Texas blind salamander (Eurycea rathbuni) lives in the Edwards Aquifer region around San Marcos. Along with other species the salamander lives in total darkness in the underground crevices and caves of the aquifer region. The table lists some of the organisms that live in this environment and their food sources. In an energy pyramid for these aquifer cave dwellers, which of the following would be placed at the bottom?
    Question Image
    Blind shrimp
    Protozoa
    Texas blind salamanders
    Snails
    120s
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  • Q8
    A student sets up a compost bin outdoors. Inside the bin microorganisms convert the student’s vegetable and paper scraps into rich fertilizer. Which of the following best describes the role that these microorganisms play in natural habitats?
    The microorganisms help keep nutrients cycling through the ecosystem.
    The microorganisms function as autotrophs.
    The microorganisms turn solar energy into sugars.
    The microorganisms help balance the numbers of producers and consumers.
    60s
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  • Q9
    The graph shows the basic changes in a forest community after a disturbance occurred. The information shown in the graph suggests that the changes in the forest community were caused by—
    Question Image
    decreased species diversity
    succession after a fire
    tree-leaf replacement after a storm
    repeated habitat destruction
    120s
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  • Q10
    A native species and a non-native species are competing for resources within the same ecosystem. The non-native species is more likely to survive than the native species in which of the following situations?
    The non-native species has no natural enemies in the ecosystem.
    Both the native species and the non-native species thrive on the same food source.
    The native species is immune to certain pathogens in the ecosystem.
    Predators prey on both native and non-native species.
    60s
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  • Q11
    The table below provides some information about the feeding methods of the five rhinoceros species. Which rhinoceros species is best adapted for feeding in the large open grasslands of Africa’s Serengeti ecosystem?
    Question Image
    White rhinoceros
    Javan rhinoceros
    Sumatran rhinoceros
    Black rhinoceros
    120s
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  • Q12
    Dead zones are low-oxygen areas that develop on the seafloor. Scientists hypothesize that phytoplankton blooms cause these dead zones. Phytoplankton blooms occur when excess nutrients are introduced by pollution from fertilizers, sewage plants, and the burning of fossil fuels. Which of the following would most likely cause an increase in these contributors to dead zones?
    Farming practices that reduce nitrate and phosphate applications
    Rainfall patterns that increase freshwater runoff from terrestrial ecosystems
    Constructing efficient water-recovery and treatment plants
    Replacing coal-fired power plants with windmills
    60s
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  • Q13
    Some fungi secrete substances that are toxic to bacteria that compete with them for food. Scientists have used their knowledge of this ability of fungi in order to produce which of the following substances?
    Plastic
    Antibiotics
    Fertilizers
    Yogurt
    60s
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  • Q14
    A marine ecosystem is represented here. What is lost to the environment at each of the trophic levels of this ecosystem?
    Question Image
    Heat
    Food sources
    Living space for the organisms
    Nutrients from the soil
    120s
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  • Q15
    Hydrothermal vents form deep in the ocean when iron-rich magma is relased from openings on the seafloor. These vents spew extremely hot water (400°C) mixed with methane and sulfur. Bacteria that thrive in this hostile environment form the base of a food chain that leads to colonization by tube worms, mussels, and many other life-forms. When a hydrothermal vent becomes inactive and cold, the bacterial community that lives in the hot fluid methane and sulfur dies out. Which organisms most likely succeed the original community in this ecosystem?
    Giant kelp that use sulfur in photosynthesis
    Ocean mammals that tolerate cold and act as top predators in the food chain
    Fish that do not need oxygen for cellular respiration
    Cold-tolerant bacteria that feed on sulfur and iron in the vents
    60s
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  • Q16
    Brazil nuts (Bertholletia excels) are tall canopy trees that make up a large portion of the Amazon rain forest. They produce large grapefruit-sized seedpods. The aguouti, a ground dwelling rodent, has teeth strong enough to open the tough seedpods. While the agouti eats some of the tree’s seeds, it also buries caches in various spots on the rainforest floor. Why is the agouti important to the rain forest ecosystem?
    Question Image
    It cleans the rain forest floor of debris, allowing for easier motility.
    It eats the trees’ excess seeds and prevents other animals from doing so.
    It eats and disperses the trees’ seeds.
    It prevents the trees’ seeds from rotting on the rain forest floor.
    120s
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  • Q17
    A terrestrial food web is shown below. Which of the following lists only organisms that are secondary consumers in this food web?
    Question Image
    Predaceous insects, toads, spiders, and foxes
    Insectivorous birds, seed-eating birds, owls, and hawks
    Mice, rabbits, herbivorous insects, and squirrels
    Spiders, foxes, owls, hawks, and snakes
    120s
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  • Q18
    The diagram below represents the nitrogen cycle in a student’s aquarium. Ammonia, nitrites, and, to a lesser degree, nitrates can be harmful to fish. The student wants to keep the nitrogen in this aquarium cycling normally without having to continually change the water. Which of the following should the student add more of to help remove nitrates and improve the natural cycling of nitrogen in this aquarium?
    Question Image
    Nitrobacter
    Water
    Fish
    Plants
    120s
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  • Q19
    Amphibians are dying in large numbers after being infected by an aquatic fungus called Batrachochytrium dendrobatidis. The origin of this fungus is unknown, but scientists suspect that humans are helping spread it. More than 350 amphibian species have been affected, and at least 200 species of frogs have suffered serious reductions in population or become extinct. The map below shows the worldwide distribution of B. dendrobatidis. What will be the most likely impact of the decline in frog populations resulting from the fungal infection?
    Question Image
    Plants will no longer grow in the waters of the affected ecosystems, and fish species will increase.
    The fungus will move on land and destroy reptile and mammal populations in tropical ecosystems.
    Populations of algae and mosquitoes will increase, leading to fish die-offs and potential increases in human malaria cases.
    New species of frogs that feed on both the fungus and the infected species of frogs will evolve.
    120s
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  • Q20
    The graph below shows the changes in the number of species in an ecosystem. Which event was most likely the cause of the changes in species diversity in this ecosystem?
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    A large volcanic eruption
    A flash flood
    A small tornado
    A migration of locusts
    120s
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