If Thermoregulation Is Considered to Be a Secondary Function of the Large

question 76

Multiple Choice

If thermoregulation is considered to be a secondary function of the large ears of jackrabbits, then the primary function of the ears is

• A)to optimize nutrient intake through the thin, permeable surfaces on the ears.
• B)to alter the rate of gas exchange, based on the adjustable radius of the ears' blood vessels.
• C)to detect predators by using the large size and flexible positioning of the external ears to channel sound waves into the ear canal.
• D)to protect offspring from bright sunlight by the positioning the ears to cast maximum shadows.
• E)to protect against pathogens by having a thick, waxy surface on the ears.

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Definitions:

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A physiological response to perceived harmful events, attacks, or threats to survival, priming the body for either confronting or avoiding the danger.

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The biological processes and reactions of the immune system in detecting and fighting off pathogens.

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A range of conditions that affect the heart's structure and function, including coronary artery disease, arrhythmias, and congenital heart defects.