Selection Is Weaker Later in Life Because __________

question 30

Multiple Choice

Selection is weaker later in life because __________.

• A)most reproduction has already occurred
• B)little empirical work has examined the effects selection had on older adults
• C)selection operates more strongly on women than on men
• D)there are fewer men alive later in life

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Definitions:

Pineal Gland

A small endocrine gland in the vertebrate brain that produces melatonin, which helps regulate sleep patterns.

Melatonin Release

The secretion of the hormone melatonin by the pineal gland, regulating sleep-wake cycles.

Darkness

The absence of light in an environment, resulting in limited visibility.

Homeostasis

The regulation of internal conditions within an organism to maintain a stable, constant environment despite external changes.