Online Exam 8_07
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Part 1 of 1 – 75.0/ 100.0 Points
Question 1 of 20 5.0/ 5.0 Points
Which of the following is an example of a nonrenewable resource?
A. Groundwater
B. Trees in a forest
C. Tuna
D. Coal
Question 2 of 20 5.0/ 5.0 Points
Which of the following is most likely to occur as a consequence of global climate change?
A. The distributions of plants and animals will move closer toward the equator.
B. The distributions of plants and animals in mountains will move downward to lower
elevations.
C. The rates of decomposition and microbial activity will increase, thus increasing emissions of
carbon dioxide.
D. The distribution of tropical rain forests will increase.
Question 3 of 20 5.0/ 5.0 Points
The mass extinction of dinosaurs and other animals at the end of the Cretaceous period is
believed by most scientists to have been caused by:
A. a massive asteroid or comet impact.
B. a massive volcanic eruption.
C. gamma radiation released from a supernova explosion.
D. overhunting by expanding populations of Neolithic humans.
Question 4 of 20 5.0/ 5.0 Points
Species living on isolated islands are especially vulnerable to extinction by:
A. overhunting.
B. pollution.
C. the introduction of exotic species.
D. habitat destruction.
Question 5 of 20 5.0/ 5.0 Points
Which trait makes a species vulnerable to extinction?
A. Short life span
B. Large home range
C. Habitat generalist
D. Non-migratory
Question 6 of 20 5.0/ 5.0 Points
Which of the following biomes is most likely to increase its primary productivity in response to
an increase in atmospheric carbon dioxide levels?
