Maintaining a Posture for a Prolonged Period of Time Requires

question 19

Multiple Choice

Maintaining a posture for a prolonged period of time requires muscles that are slow to fatigue and able to make small adjustments in muscle tension.Therefore,muscles with a high percentage of ________________muscle fibers would be very active during a maintained posture.

• A) Type I
• B) Type IIB
• C) Type IIA

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Definitions:

Frequency-dependent Selection

A form of natural selection where the fitness of a phenotype depends on its frequency relative to other phenotypes in a given population.

Trait

A distinguishable characteristic or quality of an organism, often heritable, that can be physical, behavioral, or physiological.

Population

A group of organisms of the same species living and interbreeding within a certain area.

Energy Benefit

The gain in energy efficiency or energy obtained from consuming food, engaging in behaviors, or adapting to environments.