Human Influences on the Environment

Human Influences on the Environment Quiz

Spec 9.9–10 · Edexcel GCSE Biology: Quiz

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5 questions, one answer each

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  1. 1. Term for a species introduced where it doesn't naturally occur?

    • A. Indigenous species
    • B. Non-indigenous species
    • C. Decomposer species
    • D. Keystone species

  2. 2. Negative impact of fish farming?

    • A. Increased biodiversity nearby
    • B. Reduced demand for wild fish
    • C. Eutrophication from waste build-up
    • D. Prevention of disease spread

  3. 3. Correct eutrophication order?

    • A. Algal bloom → nutrients → plants die → oxygen falls
    • B. Nutrients → algal bloom → plants die → decomposers multiply → oxygen falls
    • C. Oxygen falls → plants die → algal bloom → nutrients
    • D. Plants die → nutrients → oxygen falls → algal bloom

  4. 4. Non-native fish with no predators rapidly multiplies, native fish decline. Best explanation?

    • A. Native fish undergoing reforestation
    • B. Non-native undergoing eutrophication
    • C. Non-native outcompeting natives for resources
    • D. Native fish becoming non-indigenous

  5. 5. Conservation charity funds captive breeding AND reforestation. Why fund both?

    • A. Both only benefit one species
    • B. Captive breeding preserves genetic diversity of one species; reforestation restores habitat for many species
    • C. Reforestation causes eutrophication
    • D. Both increase spread of invasive species

Quiz