The reintroduction of wolves into Yellowstone in 1995 had _______ effect on aspen and _______ effect on elk.
A) a direct; a direct
B) a direct; an indirect
C) a direct; no
D) an indirect; a direct
E) an indirect; an indirect
Correct Answer:
Verified
Q17: An ecological community is
A) a group of
Q18: Which of the following is a primary
Q19: Which of the following is a primary
Q20: A trophic level consists of the organisms
A)
Q21: The number of trophic levels in most
Q23: Grain is eaten by cows, and cows
Q24: The introduction of a large predatory fish
Q25: Beavers affect communities by
A) what they eat.
B)
Q26: Which of the following statements about wolves
Q27: A termite mound alters the environment in
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