Birds Adjust Their Insulation Via

question 48

Multiple Choice

Birds adjust their insulation via

• A) ptilomotor and vascular responses.
• B) ptilomotor, vascular, and postural responses.
• C) ptilomotor, vascular, postural, and thermogenic responses.
• D) ptilomotor, vascular, postural responses, and nonshivering thermogenesis.

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Definitions:

Urinary Output

The measurement of the volume of urine produced by the kidneys over a specific period of time, an indicator of kidney function and hydration status.

Parathyroid Hormone

A hormone produced by the parathyroid glands that helps regulate calcium levels in the blood.

Serum

Fluid portion of blood after the removal of fibrin and blood cells.

Muscle Contraction

The shortening and/or development of tension within a muscle, allowing for movement and force generation.