The graph above shows the frequency distribution of a population of fish before and after scientists engaged in a breeding program over many generations. which of the following explanations best describes the program? a. the average size of the population did not change because no selection occurred. b. the average size of the population decreased because the scientists selected for smaller individuals. c. the population spontaneously grew larger. d. the average size of the population increased because the scientists selected for larger individuals.
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The graph above shows the frequency distribution of a population of fish before and after scientists...
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