The many species of tree frogs that inhabit forests in the eastern United States maintain their genetic isolation from other species by several mechanisms,including "singing" slightly different songs.Which type of isolating mechanism does this represent?

Question

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The fact that the different species of tree frogs sing slightly different songs is an example of behavioral isolation, as it is a mechanism that prevents interbreeding due to differences in behavior or mate recognition.

The Many Species of Tree Frogs That Inhabit Forests in the Eastern