Physical Activity in Hot and Humid Environments Challenges the Body

question 35

Multiple Choice

Physical activity in hot and humid environments challenges the body because

• A)it produces large amounts of heat that must be regulated.
• B)blood is pooled inside the body core.
• C)evaporative heat loss only works in colder temperatures.
• D)acclimatization is not possible in hot environments.

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Definitions:

Hydrophobic

Pertaining to molecules or parts of molecules that repel water, often non-polar substances that do not readily dissolve in water.

Quaternary

Relating to the most recent period of the geological time scale, which follows the Tertiary period and encompasses the current time.

Hemoglobin

A molecule found in red blood cells responsible for transporting oxygen from the lungs to the tissues throughout the body and bringing carbon dioxide from those tissues back to the lungs.

Metabolism

This is the set of life-sustaining chemical reactions in organisms, involving the conversion of food to energy, the elimination of nitrogenous wastes, and the synthesis of necessary compounds.