How does physical exercise help maintain cognitive abilities in middle age?
A) Because the brain is a muscle—use it or lose it
B) By decreasing low-density lipoproteins ("bad" cholesterol)
C) By maintaining cardiovascular fitness
D) By increasing optimism and life satisfaction
C
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A commitment by both parents to cooperate in raising their child is known as the
parental alliance. bonding process. couvade. parent-infant bond.
Adoption studies reveal that
A) adopted children show a significant decline in IQ across middle childhood and adolescence, regardless of rearing conditions. B) children of low-IQ biological mothers do as well as children with high-IQ biological mothers when placed in similar adoptive homes. C) genetic factors play a much greater role in IQ than environmental factors. D) when children of low-IQ mothers are adopted at birth by parents who are well above average in income and education, they score above average in IQ during the school years.