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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?
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    IV, III, I, II
    II, IV, I, III
    III, I, II, IV
    I, II, IV, III
  • 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
  • Q3
    Which of the following are missing from the food web shown above?
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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
  • 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?
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    A reduction in the use of fossil fuels
    Increases in marine biota
    A thickening of ocean sediments
    The destruction of terrestrial biota
  • 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?
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    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.
  • 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?
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    Blind shrimp
    Texas blind salamanders
  • 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.
  • 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
  • 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.
  • 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?
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    White rhinoceros
    Javan rhinoceros
    Sumatran rhinoceros
    Black rhinoceros
  • 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
  • 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?
  • Q14
    A marine ecosystem is represented here. What is lost to the environment at each of the trophic levels of this ecosystem?
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    Food sources
    Living space for the organisms
    Nutrients from the soil
  • 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

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