Describe what happens when species partition resources.
What will be an ideal response?
Resource partitioning occurs when species competing for similar scarce resources evolve specialized traits that allow them to share resources by using parts of them, using them at different times, or using them in different ways.
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Which of the following is NOT a contributing factor to the high mortality rates among Russian men?
A) cardiovascular disease resulting from high-fat diets and physical inactivity B) less financial resources for health expenditures as compared to the Soviet era C) exposure to radiation from Soviet-era nuclear waste which was improperly disposed D) high rate of tobacco use E) excessive consumption of alcohol
Which of the following statements about tar sands is true?
A) Most of Canada's petroleum reserves are in the form of tar sands. B) Most of the petroleum reserves in North Dakota are in the form of tar sands. C) Hydrofracking is used to extract oil from tar sands. D) Deposits of tar sands are generally found in sandy deserts such as the Arabian Desert in the Middle East.
The addition of water vapor will cause the density of air to:
A) vary widely in a horizontal direction. B) increase. C) decrease. D) stay the same.
Taliks are present:
a. in the suprapermafrost zone b. at the permafrost table c. below the permafrost table d. above and below the permafrost table