Question

Darwin believed that emotional expressions began as ________ that came to have evolutionary value because they ________. physiological reactions; convey emotional states to other members of the species physiological reactions; increased the efficiency of bodily reactions communication devices; increased the efficiency of bodily reactions random mutations; convey expectations to other members of the species

Answer 1

Darwin believed that emotional expressions began as physiological reactions that came to have evolutionary value because they convey emotional states to other members of the species. These reactions are used by many different types of species to convey various things.