Trophic levels in an ecosystem (biology only) 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.

Pyramids of biomass exam tip 1

Use precise biological vocabulary when you explain how to construct accurate pyramids of biomass from appropriate data..

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 use data and scales correctly when drawing pyramids of biomass..

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 interpret biomass pyramids in relation to food chains and trophic levels..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to describe how biomass is transferred from one trophic level to the next..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to recall that producers transfer only a small proportion of incident light energy into biomass by photosynthesis..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to recall that only about one tenth of biomass is transferred to the next trophic level..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain how biomass is lost because not all ingested material is absorbed..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain how biomass is lost in faeces through egestion..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain how absorbed material is lost as waste, including carbon dioxide and water from respiration..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain how absorbed material can be lost as urea in urine..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain why large amounts of glucose used in respiration reduce biomass transfer..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to calculate the efficiency of biomass transfer between trophic levels using percentages..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to calculate the efficiency of biomass transfer between trophic levels using fractions of mass..

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

Transfer of biomass exam tip 1

Use precise biological vocabulary when you explain how to explain how biomass transfer efficiency affects the number of organisms at each trophic level..

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