The Shift in Body Weight of Sociable Weaver Birds Towards

question 9

Multiple Choice

The shift in body weight of sociable weaver birds towards an intermediate body weight is an example of ____ selection(s) .

• A) frequent
• B) directional
• C) disruptive
• D) stabilizing
• E) mutational

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Definitions:

Basilar Membrane

A structure in the cochlea of the inner ear that plays a critical role in the sense of hearing by vibrating in response to sound waves.

Cochlea

A spiral-shaped cavity within the inner ear, functioning in the process of converting sound waves into neural signals.

Basilar Membrane

A key structure in the cochlea of the inner ear that plays a critical role in sound perception by vibrating in response to sound waves.

Semicircular Canals

Three fluid-filled tubular canals in the inner ear that sense the rotation of the head.