Trophic structure refers to the pattern of food consumption in an ecosystem
a. True
b. False
Indicate whether the statement is true or false
True
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What is the principal cause of soil erosion?
A. activities of animals B. wind C. running water
Much of the southwestern United States is desert because (choose as many as apply)A) it is near 30° NorthB) the western mountains create a rain shadowC) cold ocean currents in the Pacific cause high evaporation rates in the landD it is a great distance from the ocean
What will be an ideal response?
The Doctrine of Prior Appropriation
A. is most commonly applied where there is abundant surface water to appropriate. B. includes a provision that, in times of water shortage, all users are equally entitled to use water as needed. C. establishes a hierarchy of water rights among users based on the date of first water use by each. D. All of the choices are correct.
Price is a function of ________.
A. location B. demand and location C. supply and demand D. demand E. supply