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

question 38

Multiple Choice

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

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Definitions:

Feeding Behaviors

The actions or strategies by which organisms obtain food, influenced by genetic, environmental, and psychological factors.

Sex

The biological characteristic determining the male or female traits of an organism.

Cingulate Gyrus

A curved fold covering the corpus callosum, involved in emotion formation and processing, learning, and memory.

Hippocampus

A major component of the brain in humans and other vertebrates, associated with memory formation and spatial navigation.