Author Question: Darwin believed that emotional expressions began as ________ that came to have evolutionary value ... (Read 103 times)

NClaborn · **on:** Jun 22, 2018

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

Question 2

When people communicate using nonverbal behavior, they typically use

a. their eyes.
b. their hands.
c. their tone of voice.
d. multiple channels.