Adolescents must face changes in:

Variations in air pressure that can be heard

a. constitute sounds. b. resemble the objects that produced them. c. are a form of chemical energy. d. can also be seen. e. interfere with the perception of sound.

How do psychologists use the evolutionary perspective to explain differences in aggression in men and women?

a) Men engage in more indirect forms of aggression that are less likely to lead to retaliation because their size and strength make it more likely that they could hurt each other seriously, thus leading to less survival of the species. b) Women engage in more indirect forms of aggression that are less likely to lead to retaliation, thus allowing for maternal behaviors. c) Men engage in more direct forms of aggression because the Y chromosome contains a mutation that codes for forms of aggression meant to protect territory against members of the same species. d) Women engage in more direct forms of aggression to compensate for their smaller size and make themselves appear more threatening.