During__________, female rats respond to males by hopping, wiggling their ears, and arching their backs with their tails to one side, thus enabling males to penetrate them

In looking at the relationship between hunger and conditions of the stomach researchers have discovered that:

a. hunger cannot be experienced if one's stomach is full. b. stomach contractions are necessary for experiencing hunger. c. rats whose stomachs are removed continue to eat regularly. d. humans and animals without stomachs lose the capacity to feel hungry.

Vygotsky's theory focused on

a. how children come to learn from skilled caregivers and older children. b. the infant's ability to imitate what he/she sees. c. how infants come to encode and store information from the environment. d. levels of infant intelligence.