Pyramids of Biomass (AQA GCSE Biology): Flashcards
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What do pyramids of biomass represent?
What do pyramids of biomass represent?
Relative amount of biomass at each trophic level
Definition of biomass
Definition of biomass
Total mass of living material
What happens to biomass moving up trophic levels?
What happens to biomass moving up trophic levels?
Less biomass at higher levels
Why does biomass decrease at each trophic level?
Why does biomass decrease at each trophic level?
Energy is lost at each stage
% of sunlight producers convert to biomass
% of sunlight producers convert to biomass
1%
Process producers use to make biomass from sunlight
Process producers use to make biomass from sunlight
Photosynthesis
Why only 1% of sunlight converted to biomass?
Why only 1% of sunlight converted to biomass?
Not all sunlight reaches photosynthesizing parts
% of biomass transferred to next trophic level
% of biomass transferred to next trophic level
10%
% of biomass lost at each trophic level
% of biomass lost at each trophic level
90%
Examples of producers
Examples of producers
Plants and algae
Is all food consumed converted to biomass?
Is all food consumed converted to biomass?
No - not all food consumed is converted; energy is lost