What was the overall effect of removing the predatory sea star Pisaster ochraceus from its food web?
a. Species richness decreased rapidly.
b. Species richness increased rapidly.
c. Species richness stayed the same.
d. Another predator moved to the top position in the food web.
e. Mussel populations decreased.
ANSWER: a
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Color is an inherited trait in beetles. If brown beetles move into a population from a nearby island, which of the following statements is correct?
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A(n) ____________________ is the group to which experimental results can be compared. Fill in the blank(s) with the appropriate word(s)
Which of the following has a gametophyte dominant lifestyle?
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