In some cultures, such as the Kaluli of Papua New Guinea, adults rarely communicate with young children and never play social games with them, yet their children acquire language within the normal time frame. This suggests that

A) social interactionists' theories about language development are invalid.
B) adult molding of communication during the first year is not essential.
C) other individuals, such as older peers, mold early communication skills in these cultures.
D) gesturing is more important than verbalization.

B

Psychology

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By the time a human is born, the original zygote has become about ______ cells

Fill in the blank with correct word

Psychology

Darwin believed that emotional expressions began as ________ that came to have evolutionary value because they ________

a. physiological reactions; convey emotional states to other members of the species b. physiological reactions; increased the efficiency of bodily reactions c. communication devices; increased the efficiency of bodily reactions d. random mutations; convey expectations to other members of the species

Psychology