In Washington State, the ________ acts as a keystone predator; when removed, biodiversity ________ .
A. sea otter; decreases
B. sea star; increases
C. mussel, decreases
D. sea star; decreases
E. mussel; increases
Answer: D
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The surface pressures at the bases of warm and cold columns of air are equal. Which of the following statements describes what is occurring?
A. Pressure decreases with increasing height at the same rate in both columns. B. The cold air is lighter than the warm air. C. The columns of air contain a different total number of air molecules. D. The weight of each column of air is the same.
Mining contributes the most to Australia's economy
Indicate whether the statement is true or false
Define "relief." What is the total relief exhibited on Earth's surface? What is the relief within the state where you live?
What will be an ideal response?
The Dominican Republic-Central America Free Trade Agreement (DR-CAFTA) was patterned after NAFTA
Indicate whether the statement is true or false