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13 cards from this deck
Position an organism occupies in a food chain
Only ~10% of energy passed to next trophic level
As heat to the environment
In waste products (urine, faeces)
Bones, roots, fur
Less energy available as you move up food chain
4-5 levels
Not enough energy left to support more organisms
From sun via photosynthesis
Bones, hooves, claws
Waste from excess proteins, excreted in urine
Biomass transferredBiomass available×100\frac{\text{Biomass transferred}}{\text{Biomass available}} \times 100Biomass availableBiomass transferred×100
Direction of energy transfer
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