Explain the costs of bipedalism. How do these derive from the skeletal changes associated with the evolution of bipedalism?
What will be an ideal response?
1. Costs including strain on back, hips, knees and feet as well as circulatory difficulties
2. Skeletal changes in the skull and spine, pelvis, legs, and feet
3. Evolutionary trade-off between these costs and the benefits of bipedalism
You might also like to view...
Cro-Magnon first appeared in Europe about __________ years ago.
A) 45,000 B) 65,000 C) 35,000 D) 75,000
Among the Hopi, a boy's relationship with his father is generally affectionate and involves little discipline because the Hopi are a patrilineal society
Indicate whether the statement is true or false
The Maasai in Tanzania and Kenya have a social system that includes a(n):
a. ?class system. b. ?age-set system. c. ?caste system. d. ?coercive power.
Ethnic artists are now regarded by museums as what?
a. Part of their tribes b. Individuals c. Followers of “primitivism” d. Too primitive to put in permanent collections