Multiple Choice
Two species of tree frogs that live sympatrically in the northeastern United States differ in ploidy: Hyla chrysocelis is diploid, and Hyla versicolor is tetraploid. The frogs are identical in appearance, but their mating calls, which females use to find mates, differ. Which difference most likely evolved first?
A) polyploidy
B) difference in mating calls
C) A and B must have occurred at the same time.
Correct Answer:

Verified
Correct Answer:
Verified
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