What Is True of Natural Selection

question 31

Multiple Choice

What is true of natural selection?

• A)Natural selection is a random process.
• B)Natural selection creates beneficial mutations.
• C)The only way to eliminate harmful mutations is through natural selection.
• D)Mutations occur at random;natural selection can preserve and distribute beneficial mutations.

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Definitions:

Atelectasis

A condition characterized by the collapse of part or all of a lung, leading to reduced or absent gas exchange.

Pooled Secretions

Accumulation of bodily fluids, typically mucus or saliva, in parts of the body, which can pose a risk of infection or other complications.

Hypocarbia

A condition marked by reduced levels of carbon dioxide in the blood, usually due to excessive breathing.

Physical Activity

Any bodily movement produced by skeletal muscles that requires energy expenditure, important for maintaining physical fitness and health.