There are fewer lions in Africa's Serengeti than there are zebras. This is principally because ________. A. zebras tend to drive off lions; B. lions compete directly with cheetahs, while zebras do not have any competitors; C. zebras have mutualists that increase their population, while lions do not; D. there is less energy available in zebras to support the lion population than there is in grass to support the zebras; E. zebras are a keystone species, while lions are not.
Added by Bryce G.
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Step 1: Lions in Africa's Serengeti have to compete directly with cheetahs for food. Show more…
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