Primates Have Long Growth and Development Periods Because

question 12

Multiple Choice

Primates have long growth and development periods because

• A) they are like other mammals in taking a long time to develop to sexual maturity.
• B) on average they are smaller bodied than most other mammals.
• C) they have higher intelligence and larger brains relative to other animals.
• D) the areas of the brain associated with smell and hearing are expanded in primates.

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Definitions:

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness.

Melatonin

A substance secreted by the pineal gland that controls the patterns of sleeping and waking.

Dopamine

A neurotransmitter associated with pleasure, movement, and attention in the brain.