Many ecologists think of ecosystems and even the Earth as a superorganism because its systems appear to be:
A. Self-regulating and self-stabilizing
B. Unregulated
C. Unchangeable
D. Hierarchical
E. Completely unpredictable
Answer: A
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The continental crust of the Pacific Northwest and Alaska are much different from the rest of the United States. What process would account for these varied differences?
After WWII, the United States emerged as the world's hegemonic power
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