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WAEC Biology 2009 Question 57

Question 57

Evolution

A dairy farmer allowed only his best milk producing cows to mate. In succeeding generations of cows, milk production increased. This outcome is an example of

  1. A.artificial selection.
  2. B.natural selection.
  3. C.competition.
  4. D.cross fertilization.
Show the answer and explanation

Answer: A (artificial selection.)

Explanation

When humans choose which animals breed to get a desired trait, it is artificial selection.