Feeding Relationships

Feeding Relationships Quiz

Spec 9.7B–8B · Edexcel GCSE Biology: Quiz

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5 questions, one answer each

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  1. 1. Energy lost between trophic levels mainly as?

    • A. Light
    • B. Heat
    • C. Sound
    • D. Chemical energy in biomass

  2. 2. Which is NOT a reason energy isn't fully transferred?

    • A. Respiration loss
    • B. Egestion loss
    • C. Excretion loss
    • D. Energy gained via photosynthesis

  3. 3. Producers 12000kJ, primary consumers 1200kJ. Efficiency?

    • A. 1%
    • B. 10%
    • C. 12%
    • D. 100%

  4. 4. Why is biomass pyramid almost always a true pyramid?

    • A. More producers by number always
    • B. Biomass decreases at each trophic level
    • C. Different units used
    • D. Producers photosynthesise faster

  5. 5. Secondary consumers have 45kJ, representing 10% of primary consumers' energy. Primary consumers' energy?

    • A. 4.5kJ
    • B. 90kJ
    • C. 450kJ
    • D. 4500kJ

Quiz