Lesson 4.7.1.1

4.7.1.1 Communities Quiz: AQA Combined Science, Unit 7

20 questions

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Lesson 4.7.1.1, Communities: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 7: Ecology, written with Revision Ninja.

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The 20 questions

  1. What two key components interact to form an ecosystem?

    • plants and animals
    • biotic and abiotic
    • producers and consumers
    • predator and prey
  2. What do plants in a community typically compete for?

    • prey and shelter
    • oxygen and glucose
    • mates and territory
    • light and space
  3. What three resources do animals within a community commonly compete for?

    • light, space, water
    • food, mates, territory
    • minerals, soil, air
    • shelter, pollen, seeds
  4. What term describes species depending on each other for food, shelter and pollination?

    • interdependence
    • extinction
    • classification
    • adaptation
  5. What feature defines a stable community?

    • rapid evolution
    • zero competition
    • constant migration
    • constant population sizes
  6. What happens across an ecosystem if a single interdependent species is removed?

    • populations double
    • affects whole community
    • abiotic factors vanish
    • nothing changes
  7. Which is the smallest level of organisation in an ecosystem?

    • atoms of carbon
    • cell organelles
    • molecules inside cells
    • individual organisms
  8. From what two sources do organisms obtain the materials they need to survive?

    • water and oxygen
    • sunlight and soil
    • air and minerals
    • surroundings and organisms
  9. Two bird species eat the same seeds in one woodland. What are they competing for?

    • pollination
    • seed dispersal
    • food
    • sunlight
  10. Plants on a shaded forest floor grow tall. What are they competing for?

    • light
    • carbon dioxide only
    • no resource
    • nitrogen gas
  11. In a pond, fish eat algae and herons eat fish. Which concept is shown?

    • abiotic decline
    • classification
    • adaptation
    • interdependence
  12. The decline of a plant species following the loss of pollinators demonstrates what?

    • bioaccumulation
    • interdependence
    • mutation
    • competition
  13. A student considers competition in a desert. What is most likely being competed for?

    • pollination
    • seed dispersal
    • decomposers
    • water
  14. What scientific skill involves studying organisms directly in their habitat?

    • first-hand observations
    • genetic sequencing
    • chemical analysis
    • fossil dating
  15. Which two key processes shape interactions between species within biological communities?

    • competition and interdependence
    • diffusion and osmosis
    • mitosis and meiosis
    • photosynthesis and respiration
  16. What can happen when two species strongly compete for the exact same limited resource?

    • instantaneous speciation
    • population reduction
    • mutual cooperation
    • population increase
  17. Why does high interdependence make a biological community more vulnerable to species loss?

    • widespread secondary effects
    • constant population sizes
    • increased genetic mutation
    • reduced solar radiation
  18. What do ecological sampling studies of community interactions primarily focus on?

    • Organisms
    • Soil minerals
    • Weather patterns
    • Abiotic factors
  19. What defines a stable biological community?

    • balanced environmental factors
    • constant maximum population
    • zero predator presence
    • rapid seasonal fluctuation
  20. An ecosystem is the interaction of a community of living organisms with what?

    • non-living environment
    • predatory mammals only
    • microbial spores only
    • artificial structures

All AQA Combined Science quizzes