What is punctuated equilibrium?
a. another word for phyletic gradualism
b. the idea that species remain stable for long periods, then evolve rapidly
c. the idea that new species originate from small changes
d. a phenomenon that occurs in divergent, but not convergent, evolution
e. an idea that would garner more support if missing fossil links could be found
b
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In 2000, how much solid waste did the average person in the United States produce?
A. 220 metric tons per year B. 770 kilograms per year C. 190 metric tons per year D. 840 kilograms per year
Scientists estimate there are 14 million to 100 million species on earth. They have identified only about 2 million. Why haven't they identified more?
A. We have not devoted the resources to identifying them. B. The total number of species changes quickly over a few years. C. The total number of species varies with the seasons. D. It is hard to keep count because of a rapid increase due to genetic engineering.
What is isostasy? How does isostasy affect the placement of oceanic crust versus continental crust?
What will be an ideal response?
Which site on the island is the most dangerous?
A. the area of the mudflow deposits B. the area of the landslide blocks C. the location of Rock 1 D. the location of Rock 3 E. the location of Rock 2