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AP® Biology

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Cattle and Cattle Egrets

APBIO-ELFLFJ

In Africa, a species of bird called the cattle egret (Bubulcus ibis) can often be found in close proximity to herds of grazing cattle and other grazing herbivores. As the cattle graze, they disturb insects and other small animals living in the tall grass.

The egrets catch and eat these disturbed insects, but they do not interact directly with the cattle.

Which of the following BEST describes the relationship between these two species as presented above?

A

Both species benefit from the others' presence in the environment.

B

The egrets benefit from the cattle, but the cattle are harmed by the egrets.

C

The egrets benefit from the cattle, and the cattle are unaffected by the egrets.

D

The egrets are unaffected by the cattle, but the cattle benefit from the egrets.