The structure and dynamics of a community depend largely on species diversity and feeding relationships. These feeding relationships between organisms form the trophic structure of the community.
There are fewer lions in Africa's Serengeti than there are zebras. This is principally because _____.
A. there is less energy available in zebras to support thelion population than there is in grass to support the zebra population
B. zebras tend to drive off lions
C. lions compete directly with cheetahs, while zebras do not have any competitors
D. zebras have mutualists that increase their population, while lions do not
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