Why is an energy pyramid smaller at the top than at the base?
A. the animals at the top are not good at hunting so there are less of them
B. The amount of energy available to top predators is greater than the amount of energy available to producers
C. The energy available to top predators decreases as you move up the pyramid so it limits the size of the predator population
D. the mass of all the predators at the top is greater than all the plants at the bottom