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

question 76

Multiple Choice

In the evolution of whelk-eating behaviour 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

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