Select one: a. ordinary candidates for studying climatic adaptation because the genome of a fruit fly is simply too different to that of most endangered species to be able to provide relevant information. b. terrible candidates for studying climatic adaptation because they are so small that they are irrelevant to environmental biology. c. excellent candidates for studying climatic adaptation given the absence of genotype-by- environment interactions in fruit flies. d. excellent candidates for studying climatic adaptation because they are distributed over latitudinal clines that reflect natural gradients in the thermal environment.

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