Food chains are usually short mainly because A) only a single species of herbivore feeds on each plant species. B) local extinct
ion of a species causes the extinction of the other species in its food chain. C) most of the energy in a trophic level is lost as it passes to the next higher level. D) predator species are less diverse and less abundant than prey species. E) most producers are inedible.
The answer is C) because only about 10% of energy is transferred through each tropic level. If food chains were long, the top predators would receive barely any energy and would die. They would go extinct which leaves only short food chains with usually 5 trophic levels at the most.
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