An organism whose decline or removal from a habitat causes many other species numbers to change dramatically is called ________ species.
A) a keystone
B) a synergistic
C) a nominal
D) an introduced
Correct Answer:
Verified
Q10: Edge effects are the result of which
Q11: Scientists speculate that extinctions did not occur
Q12: A scientist studied peregrine falcons to determine
Q13: Historical extinction rates are best known for
A)reptiles
Q14: Scientists estimate that about _ of the
Q16: Island species are particularly vulnerable to extinction
Q17: While reading an online science magazine,you come
Q18: Conservationists have identified 25 areas worldwide as
Q19: As habitats are fragmented and consequently shrinking
Q20: Sea otters have been used as an
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