IB ESS 2.2.12 Food-chain energy losses
IB ESS 2.2.12 Food-chain energy losses
Practise explaining why energy and organic matter decline along food chains through harvesting, consumption, absorption and respiration losses.
How this is tested
- apply transfer losses to explain why less biomass reaches each higher trophic level
- distinguish unconsumed, unabsorbed and respired energy when analysing food-chain efficiency