Which of the following statements about sheep is true?
A. Woolly sheep are the product of natural selection.
B. Wool from wild sheep is better for making clothing.
C. The domestic sheep's wool offers it protection against extreme heat.
D. Wild sheep have a larger range of habitat than domesticated sheep.
E. Wild sheep produce more wool than domesticated sheep.
Question 2
What is a vertical economy?
A. a system of top-down exchange across regions
B. a system that exploits environmental zones that contrast with one another in altitude, rainfall, overall climate, and vegetation
C. one of the types of segmentary lineage organization that is found in regions of East Africa
D. a means of integrating a society based on hereditary inequality and coercion
E. a form of indirect-biased transmission
Increasing Costs of Natural Disasters
Oil and Natural Gas Production from More Wells in Smaller Areas
Natural Products
Some drugs are still derived from natural sources
Natural Capital versus GDP per Capita
Product Rule