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Biology

Pyramids

QuestionAnswer
What does Tropism mean? A level within the food chain
What does Pyramids of number indicate? The number of organisms within each tropism of the food chain
What do Pyramids of number look like? Do not always look pyramid shape
What do Pyramids of biomass indicate? The dry biological mass of all the organism within the trophic level
What do Pyramids of biomass looks like? Always have a pyramid shape
Why are food chains so short? Because only 10% of energy is passed onto the next trophic level.
Where is the remaining 90% from the energy? Used during MRS GREN, Lost in faeces etc. Parts of animal/ plant are not eaten e.g. Bone/ Deep roots
Created by: adam10001
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