Biology Environment and Evolution

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1. What elements do plants take in from the soil or air?

  • Carbon, oxygen, nitrogen and sulfur
  • Carbon Dioxide, Carbon Monoxide, H2O and Nitrogen
  • Carbon, oxygen, nitrogen and hydrogen
  • Earth, fire, wind and water
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2. Give three examples of living factors.

  • type of animals, number of predators/prey, number of competitors
  • change in infectious disease, number of predators/prey, number of competitors
  • number of prey, number of predators number of competitors
  • habitat conditions, number of predators/prey, number of competitors

3. Give three examples of non living factors.

  • change in rainfall, light, air or water pollution
  • change in temperature, rainfall, air or water pollution
  • change in temperature, pressure, air or water pollution
  • change in light, temperature and pressure

4. What does each bar of a pyramid of biomass show?

  • The mass of living material at that stage of the food chain.
  • The number of living material at that stage of the food chain.
  • The mass of material at that stage of the food chain.
  • The type of living material at that stage of the food chain.

5. What are detritus feeders?

  • Microorganisms which feed upon dead algae, plants and animal remains.
  • Animals which feed upon dead algae, plants and bacterium remains
  • Animals which feed upon dead algae, plants and animal remains.
  • Dead animals

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