Energy and Ecosystems

Looks at energy transfere, food production and pest control. 

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1. Which of these is not a reason for only a few trophic levels?

  • Energy lost through repiration
  • Some parts can't be digested
  • Detritroves eat most
  • Not all of an organism is eaten
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Other questions in this quiz

2. What is the efficiency of this energy transfer - Rabbit has 6350KJm-2 year-1 a fox has 1250KJ m-2 year-1?

  • 19.8KJ m-2 year-1
  • 66.6 KJ m-2 year-1
  • 19.8%
  • 508%

3. Which pyramid does consider time as a factor?

  • Number
  • Energy
  • Biomass

4. How does restricted movement aid rate of growth?

  • Less heat loss
  • Less energy in muscle contractions
  • Not targeted by preditors

5. Which of these is not a pest control measure?

  • Fertiliesr
  • Pest resistant plants
  • Natural preditors
  • Vacuuming


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