Research shows that happily married couples seem to argue just as much as unhappy couples.

Sociobiologists suggest that humans behave in ways that will________

a. optimize the chance of passing on their genes at the expense of the genes of their relatives. b. maximize the propagation of their genes and those of their close relatives. c. optimize the chances for males, but not for females, to propagate their genes. d. optimize the chances for females, but not for males, to propagate their genes.

According to sociobiologists, it is evolutionarily beneficial for females to ________

a. attach themselves to dominant males. b. compete with other females for access to young males. c. have more male offspring than female offspring. d. be promiscuous and drawn to sexual novelty.