Multiple Choice
In Robert Paine's study of sea star-mussel interactions in rocky shore communities of the Pacific Northwest, which species would be considered a keystone species and why?
A) The mussel, because its rapid growth rate allowed it to dominate the community
B) The mussel, because it caused the loss of other sessile species in the community
C) The sea star, because it is a predator, which is one characteristic of a keystone species
D) The sea star, because it is nonsessile and can therefore more strongly affect the community
E) The sea star, because it had a large effect on the community despite its relatively small size and numbers
Correct Answer:
Verified
Correct Answer:
Verified
Q127: Which type of interaction best characterizes a
Q128: Which type of study would likely provide
Q129: An "honest" mimic that is genuinely unpalatable
Q130: Some types of pine trees are attacked
Q131: Many scientists think the great number of
Q133: Many species of parrotfishes inhabit coral reefs.These
Q134: Why would it be particularly beneficial for
Q135: Leaf cutter ants cannot survive without the
Q136: Which interaction is not a trophic interaction?<br>A)
Q137: A newly discovered frog species secretes toxic