Energy and Ecosystems

Looks at energy transfere, food production and pest control. 

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1. 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
  • Used for respiration
  • Wrong wavelength
  • Reflected back into space
  • A limiting factor
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2. Which pyramids cannot have an inverted triangle

  • Number
  • Energy
  • Biomass

3. An advantage of inorganic fertilizers?

  • Adds extra organic matter
  • Soluble so has a quick effect
  • Doesn't leach

4. What is a decomposer?

  • An enzyme that breaks down dead matter
  • A creature with a mouth
  • Breaks down dead matter

5. What is a detritrove?

  • Has a mouth and breaks down dead matter
  • An enzyme that breaks down dead matter
  • Dead matter


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