1. Technology adds additional burdens to humans because it has lead to osteoporosis, heart disease, allergies and obesity.

True

False

2. Supporters of a multiregional/continuity model for modern human origins argue that the most genetic variation occurs in Africa because Africans had a larger population size.

a. True

b. False

3. Compared to Homo erectus, anatomically modern Homo sapiens limb bones are more robust.

a. True
b. False