Evaporative Cooling Is Used Only as a Last Resort by Animals

question 31

Multiple Choice

Evaporative cooling is used only as a last resort by animals in hot and dry environments because

• A) it is ineffective at dissipating heat.
• B) not all of the water released by sweating or panting dissipates heat.
• C) sweating requires energy expenditure.
• D) it requires an insulating layer in the skin.
• E) it requires a resetting of the animal's thermostat.

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Definitions:

Autoimmune Disease

A condition in which the immune system mistakenly attacks and damages the body's own tissues.

Body Fluids

Liquids produced by the body, such as blood, saliva, and urine, that maintain bodily functions and protect against infection.

Major Proteins

Essential, large molecules made up of amino acids that play critical roles in the body's structure, function, and regulation of tissues and organs.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.