Other questions in this quiz

2. What are decomposers useful for?

  • Eating human and animal waste
  • Recycling resources in the natural world
  • Making food rot away
  • Breaking down dead corpses

3. What is this: fossil fuel or wood + oxygen ➡️ Carbon dioxide + water

  • Combustion
  • Respiration
  • Pollution
  • Photosynthesis

4. What is biomass?

  • The mass of vegetation in an ecosystem.
  • The body mass of an animal or plant.
  • The dry mass of living material in an animal or plant.
  • The mass amount of food eaten by an animal.

5. Why is biomass lost in faeces?

  • Because not all of the biomass an animal eats as energy can be used, therefore the remaining biomass that hasn't been digested is lost in faeces.
  • Because the animal feels guilty of taking energy from the environment and not giving anything in return, therefore it looses some biomass as faeces.
  • Because the biomass an animal eats is excessive to what the animal really needs, therefore the biomass that the animal doesn't need is excreted as faeces.
  • Because the animal has an instinct to excrete, and therefore biomass is often lost in faeces.


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