In the evolution of whelk-eating behavior in crows, which of the following was optimized through natural selection?
A) the average number of drops required to break the shell
B) the average height a bird flew to drop a shell
C) the average total energy used to break shells
D) the average size of the shells dropped by the birds
E) the average thickness of the shells dropped by the birds

Question

Quizplus · Accepted Answer

Natural selection would favor behaviors that minimize energy expenditure, so the average total energy used to break shells would be optimized.

In the Evolution of Whelk-Eating Behavior in Crows, Which of the Following