Certain species of plants require hummingbirds to transfer pollen from the male parts of one flower to the female parts of another flower. the shape of the plant flower is compatible only with the one species of hummingbird that transfers its pollen. the type of evidence

Coevolution

Explanation:

Coevolution is a  process of natural selection in which two or more species evolve  exerting selection pressures on each other. It means that those species reciprocally affect each other's evolution.

The coevolution of a flowering plant species and a hummingbirds species is a typical example of this phenomenon. The flowering plant adapt to a pollinator (the hummingbird), which  in turn adapts to the plant. Both the shape of the flower and the shape of the beak of the bird adapt perfectly to the each other getting the proper effects. The flower guarantees the dispersion of its pollen while the bird guarantees its food.

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