The 11-inch nectary of the orchid and 8-inch long tongue of the moth are an example of which of the following?

Question

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Coevolution refers to the evolutionary change of one species in response to the evolutionary change of another species. In this case, the long tongue of the moth has evolved to pollinate the orchid with its 11-inch nectary, and the orchid has evolved to benefit from the moth's pollination. This is a classic example of coevolution.

The 11-Inch Nectary of the Orchid and 8-Inch Long Tongue