Trophic levels in an ecosystem (biology only) exam tips

Exam tips

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to describe trophic levels as positions of organisms within a food chain or ecosystem (biology only)..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to identify producers as trophic level 1, including plants and algae that make their own food..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to identify herbivores as primary consumers at trophic level 2..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to identify carnivores that eat herbivores as secondary consumers at trophic level 3..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to identify carnivores that eat other carnivores as tertiary consumers at trophic level 4..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to define apex predators as carnivores with no predators..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to describe decomposers as organisms that break down dead plant and animal matter..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Trophic levels exam tip 1

  Use precise biological vocabulary when you explain how to explain that decomposers secrete enzymes into the environment and absorb small soluble food molecules..

  This keeps your answer tightly aligned to the approved learning objective for Trophic levels.

• Pyramids of biomass exam tip 1

  Use precise biological vocabulary when you explain how to describe pyramids of biomass as diagrams showing relative biomass at each trophic level..

  This keeps your answer tightly aligned to the approved learning objective for Pyramids of biomass.

• Pyramids of biomass exam tip 1

  Use precise biological vocabulary when you explain how to explain why trophic level 1 is shown at the bottom of a biomass pyramid..

  This keeps your answer tightly aligned to the approved learning objective for Pyramids of biomass.