1. Homework- B1a Environment (F/H)
Pyramid of Biomass
1. a) Explain fully what a food chain shows
…………………………………………………………………………………………………………………………………………
b) Give three examples of food chains
c) Draw three examples of pyramid of number for the above food chains.
2. a ) What is a pyramid of biomass?
…………………………………………………………………………………………………………………………………………
b) Draw three examples of pyramid of biomass for the above food chains.
3. The diagram shows how 1000j of energy flows
through a food chain.
a) Name the process by which the green plants capture
energy from the sun …………………………………….
b) What percentage of the original energy from the
sun does the fox receive? Energy received ………………
%
c) Explain the ways in which energy is ‘lost’ at each
stage of the food chain. …………………………………………………
……………………………………………………………………………………………………
……………………………………………………………………………………………………