Winter Hibernation and Spring Reproduction in Bears Are Cued by Seasonal

question 8

Multiple Choice

Winter hibernation and spring reproduction in bears are cued by seasonal changes in the secretion of

• A) melatonin from the pineal gland.
• B) melatonin from the hypothalamus.
• C) thyroxine from the anterior pituitary gland.
• D) acetylcholine from the pineal gland.
• E) thyroid-stimulating hormone from the posterior pituitary gland.

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Definitions:

Altruism

The selfless concern for the well-being of others, often leading to acts of kindness without expectation of reward.

Helping Behavior

is actions intended to aid or benefit another person or group without expectation of reward for the self.

Voluntarily

Done, made, or provided out of free will, without coercion or obligation.

Anticipation

The action of expecting or predicting something to happen in the future.