AP Biologymediummcq1 pt
In adaptive radiation, one ancestral species rapidly diversifies because
A.many empty niches become available
B.the population shrinks to one pair
C.all niches are already filled
D.gene flow is maximal
Explanation
Core Concept
Adaptive radiation is rapid diversification of a lineage into multiple forms, often associated with ecological opportunity such as colonization of new habitats, availability of underused resources, or release from competitors. New habitats and open niches can promote the process, as the current AP framework notes, but they are not a single universal cause in every radiation.
Correct Answer
Amany empty niches become available
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