Harlow's research with infant monkey's and mechanical surrogate mothers showed that

monkeys have a biological need for

a. sucking.
b. smiling.
c. crying.
d. cuddling.
e. looking.

d. cuddling.

Psychology

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The development of formal operations in adolescence leads to ______

a. extroverted behavior b. a lessening of self-analysis compared to preoperational thought c. overconfidence and egocentrism d. thinking in terms of concrete things

Psychology

During which phase of menopause do both types of estrogen drop, progesterone levels drop, and ovulation ceases?

A) Postmenopausal B) Perimenopausal C) Premenopausal D) Postovulatory

Psychology