how Dr. Schneider's observations with hummingbirds demonstrate the operation, in hummingbird populations, of each of the four components of natural selection listed in the video. In this video, Dr. Schneider points out that some of the hummingbird species in his study are 2 million to 3 million years old, which he notes makes them very young species?

Schneider's observations with hummingbirds demonstrates the operation in hummingbird populations, because for one variation in the hummingbirds can give the birds long beaks or short beaks which is heredity and when there is that reproduction depending on the environment of the bird it will either live to reproduce

Explanation:

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answer; the federal reserve system;

elastic potential energy