Animal species with __________ life expectancies tend to display __________ free-radical damage to DNA

A) longer; slower rates of
B) shorter; slower rates of
C) longer; faster rates of
D) shorter; little to no

A

Psychology

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_____________ is the neurotransmitter used in the brain's reward circuit

a. Acetylcholine c. Dopamine b. Serotonin d. Glutamate

Psychology

Women tend to have a higher life expectancy than men and lower death rates throughout life. This has been attributed to:

A. women's greater propensity for risk-taking. B. the beneficial effects of the hormone testosterone on both cardiovascular and cognitive health. C. genetic protection given by the second X chromosome. D. the focus given by doctors on controlling risk factors for heart diseases in women than in men.

Psychology