Energy and Ecosystems

Looks at energy transfere, food production and pest control. 

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  • Created by: tcrj
  • Created on: 07-11-14 11:22

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

  • Energy lost through repiration
  • Detritroves eat most
  • Not all of an organism is eaten
  • Some parts can't be digested
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2. What additional energy is added to a agricultural ecosystem?

  • Food and fossil fuels
  • Sun, food and fossil fuels
  • Chemical and solar
  • Fossil fuels

3. How has the use of antibiotics in farming adversely affected humans?

  • Increased antibiotic resistance
  • More meat
  • Increased human disease

4. Which of these isn't a reason why only 1% of the suns energy is not used in photosynthesis?

  • Light may not fall on Chlorophyll
  • Reflected back into space
  • Used for respiration
  • Wrong wavelength
  • A limiting factor

5. Which pyramid does consider time as a factor?

  • Energy
  • Biomass
  • Number
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