Owen Lovejoy's model for the evolution of hominid bipedalism is
A) refuted by the fact that both males and females are bipeds
B) supported by evidence of male-female pair bonds in modern humans
C) refuted by the sexual dimorphism in body size among early hominids
D) supported by the occurrence of monogyny among modern humans
E) based on a 1950's model of human behavior
Question 2
If evolution shaped early hominids to stay cool by convectional heat loss
A) the system would have only worked in the shade
B) the need for drinking water would have increased
C) clothes in tropical areas would have become a necessity
D) dependence on water for evaporative cooling would have decreased
E) natural selection would have favored the retention of thick body hair
