Lesson 4.7.1.4

4.7.1.4 Adaptations Quiz: AQA Biology, Unit 7

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.7.1.4, Adaptations: 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 7: Ecology, written with Revision Ninja.

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The 20 questions

  1. Which three categories describe all organism adaptations in an ecosystem?

    • Physical, chemical, biological
    • Genetic, environmental, learned
    • Structural, behavioural, functional
    • Internal, external, cellular

  2. What name is given to organisms that live in extreme environments?

    • Extremophiles
    • Mesophiles
    • Halophytes
    • Autotrophs

  3. Where do extremophile bacteria live, according to the spec?

    • Tropical rainforest canopy
    • Deep sea vents
    • Grassland soil
    • Freshwater lake surfaces

  4. Thick fur on a mammal is which type of adaptation?

    • Chemical
    • Functional
    • Structural
    • Behavioural

  5. Hibernating through winter is which type of adaptation?

    • Functional
    • Behavioural
    • Structural
    • Genetic

  6. Producing an enzyme that works at high temperatures is which type of adaptation?

    • Functional
    • Seasonal
    • Structural
    • Behavioural

  7. What term describes features that help organisms survive in their normal conditions?

    • Competitions
    • Interdependencies
    • Adaptations
    • Mutations

  8. Which extreme environmental condition can extremophiles be adapted to tolerate?

    • Zero gravity
    • High oxygen level
    • High salt concentration
    • Low carbon dioxide

  9. A cactus has spines instead of leaves and stores water in its stem. Which adaptation type is this?

    • Behavioural
    • Functional
    • Genetic
    • Structural

  10. A desert mammal is active only at night to avoid daytime heat. Which type of adaptation is this?

    • Structural
    • Genetic
    • Behavioural
    • Functional

  11. A deep-sea bacterium makes enzymes that work at very high temperature. Which type of adaptation is this?

    • Genetic
    • Structural
    • Behavioural
    • Functional

  12. Which of these is a behavioural adaptation of an animal?

    • Concentrated urine production
    • Resting in shade
    • Large body size
    • Thick fur insulation

  13. A plant in a waterlogged habitat has air spaces in its roots. Which type of adaptation is this?

    • Functional
    • Seasonal
    • Structural
    • Behavioural

  14. An organism produces enzymes that function in high salt conditions. What type of adaptation is this?

    • Behavioural adaptation
    • Structural adaptation
    • Functional adaptation
    • Morphological adaptation

  15. A fish produces a chemical in its blood that stops it freezing in icy water. What type of adaptation is this?

    • Behavioural
    • Seasonal
    • Functional
    • Structural

  16. Bacteria living in deep sea hydrothermal vents are exposed to which extreme condition?

    • High pressure
    • High oxygen level
    • Low mineral content
    • High light intensity

  17. Adaptations related to internal body processes and biochemistry are classified as what type?

    • Functional
    • Structural
    • Anatomical
    • Behavioural

  18. Why can extremophile enzymes function at extremely high temperatures without denaturing?

    • Thicker cell walls
    • Adapted protein structure
    • Lack of substrate
    • Lower activation energy

  19. By which process do useful adaptations become more common in a population over time?

    • Natural selection
    • Selective breeding
    • Genetic engineering
    • Asexual reproduction

  20. A cactus spine is a structural adaptation. What type of adaptation is a lizard basking?

    • Extremophile
    • Structural
    • Functional
    • Behavioural

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