According to the MacArthur-Wilson model, the mainland harbors ____
a. a lower species richness than islands
b. a species pool from which species migrate to nearby islands
c. none of the same species as on nearby islands
d. an easier community to study than nearby islands
e. many species that are extinct on nearby islands
ANSWER: b
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A) 25 B) 28.8 C) 30 D) 36
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