Scientists propose that the evolution of species occurs through the process of natural selection. If this is correct, then it should follow that members of a particular species of fruit fly will tend to differ genetically across generations from other members of that species if the two sets are kept in radically different environments. In this example, the statement about how members of the fruit fly species will begin to differ can be referred to as:

Question

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The statement about how members of a particular species of fruit fly will begin to differ is a proposed explanation or prediction that can be tested through observation and experimentation. This is known as a hypothesis.

Scientists Propose That the Evolution of Species Occurs Through the Process