Predator/prey relationships are an example of
A) positive feedback, because more predation leads to higher prey populations as they increase reproduction to insure survival.
B) positive feedback, as more prey discourages further predation allowing prey populations to flourish.
C) negative feedback, because prey populations tend to achieve a balance with the number of predators.
D) negative feedback, because more wolves equal fewer elk and people tend to like elks more than wolves.
C
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A) cP B) cT C) mP D) mT
Evaluate how landforms combined with historical patterns affect current population distribution in Southeast Asia
What will be an ideal response?
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A) 1960s-1970s B) 1940s-1950s C) 1850s-1860s D) 1880s-1890s E) none of the above
The core is probably composed mainly of
A. oxygen B. silicon C. sulfur D. iron