Lesson 4.2.1

4.2.1 Niche and adaptation of organisms Quiz: Pearson Edexcel Biology, Unit 4

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.2.1, Niche and adaptation of organisms: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 4: Biodiversity and Natural Resources, written with Revision Ninja.

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The 20 questions

  1. What term describes the role of an organism within its environment?

    • Local ecosystem
    • Biological community
    • Physical habitat
    • Ecological niche

  2. What term describes the specific place where an organism lives?

    • Ecosystem
    • Habitat
    • Community
    • Niche

  3. Which option is an example of a behavioural adaptation in animals?

    • Producing concentrated urine
    • Thick blubber layer
    • Hunting at night
    • Thick fat layer

  4. Which option is an example of a physiological adaptation in plants?

    • CAM photosynthesis
    • Shallow root network
    • Spines replacing leaves
    • Thick waxy cuticle

  5. Which feature of a polar bear is an anatomical adaptation?

    • Huddling
    • Producing antifreeze
    • Shivering
    • Thick fur

  6. What type of adaptation is a thick waxy cuticle on a leaf?

    • Physiological
    • Behavioural
    • Biochemical
    • Anatomical

  7. What type of adaptation is the production of concentrated urine in desert mammals?

    • Anatomical
    • Physiological
    • Behavioural
    • Morphological

  8. What term describes the maximum population size that an environment can sustain indefinitely?

    • Population density
    • Carrying capacity
    • Biotic potential
    • Environmental resistance

  9. What term describes the role of a species within its habitat?

    • Ecological niche
    • Biome
    • Trophic level
    • Habitat

  10. What is the most likely outcome for a specialist feeder if its sole food source vanishes?

    • Rapid mutation
    • Niche expansion
    • Population decline
    • Population growth

  11. Which feature of a fish is an anatomical adaptation to fast-flowing water?

    • Slow heart rate
    • Mucus secretion
    • Streamlined body
    • Upstream swimming

  12. A nocturnal animal hunts at night to avoid competition with diurnal predators. What type of adaptation is this?

    • Genetic mutation
    • Behavioural adaptation
    • Physiological adaptation
    • Anatomical adaptation

  13. What is the main survival advantage of white fur for an Arctic fox in winter?

    • Reduced heat loss
    • Wind resistance
    • Camouflage in snow
    • Water repellence

  14. Which term describes heritable features that increase an organism's chance of survival?

    • Genotypes
    • Adaptations
    • Tropisms
    • Mutations

  15. Which term describes the position of a species in a food web and its interactions with other species?

    • Population
    • Habitat
    • Biome
    • Niche

  16. Which factor would directly alter the ecological niche of a predatory frog?

    • Reduced prey availability
    • Higher humidity
    • Colder night temperature
    • Increased rainfall

  17. What type of adaptation is active salt excretion by gill cells in marine fish?

    • Anatomical
    • Morphological
    • Behavioural
    • Physiological

  18. What type of adaptation is seasonal bird migration to warmer climates?

    • Anatomical
    • Physiological
    • Morphological
    • Behavioural

  19. Which feature of honeybee communication is a behavioural adaptation?

    • Venom production
    • Waggle dance
    • Wax glands
    • Stinger structure

  20. Which feature of a seal is an anatomical adaptation to cold ocean water?

    • Diving reflex
    • Shivering response
    • Slowed heart rate
    • Thick blubber layer

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