Some foraging models predict that the distance bees travel when foraging will decline as ﬂoral density increases, but
biologists Shalene Jha and Claire Kremen showed that bees’ behavior is inconsistent with this prediction if ﬂowers in dense
patches are ______: bees will forage beyond patches of low species richness to acquire multiple resource types.
depleted
homogeneous
immature
dispersed
Choice B is the best answer because it most logically completes the text’s discussion of Jha and Kremen’s ﬁnding about
bees’ foraging behavior. In this context, “homogeneous” means uniform or of the same kind. The text indicates that some
models predict that the distance that bees travel when they’re foraging declines as the density of ﬂowers increases. The text
goes on to say, however, that Jha and Kremen identiﬁed a circumstance in which bees don’t behave this way. Speciﬁcally, if
bees encounter “patches of low species richness”—that is, patches in which the ﬂowers are largely from the same species—
they’ll travel beyond those patches to get varied food resources. This context thus suggests that bees don’t behave as some
models predict if the dense patches of ﬂowers the bees encounter are homogeneous. 
Choice A is incorrect because the text indicates that Jha and Kremen found that bees will behave differently than some
models predict if the bees encounter ﬂower patches that are not rich in species, not if the ﬂowers are “depleted,” or emptied
or reduced in quality or quantity. Although it could be true that bees are likely to leave depleted patches in search of more
resources, the text doesn’t indicate that Jha and Kremen investigated that possibility. Choice C is incorrect because there’s
no information in the text suggesting that bees will not behave as some models predict if ﬂowers in patches are “immature,”
or not fully developed. Instead, the text indicates that Jha and Kremen found that bees will behave contrary to some models’
predictions if the ﬂower patches are not rich in species. Choice D is incorrect because the text indicates that bees’ behavior
will be inconsistent with the predictions of some models if the ﬂower patches that the bees encounter are of low species
richness, not if the ﬂowers are in patches that are “dispersed,” or widely scattered. Although the text does describe bees as
leaving patches that are not rich in species to forage elsewhere, there’s no suggestion that Jha and Kremen found that the
distance between dense ﬂower patches affects whether the bees behave as some models predict.