Diane Dodd's Experiments Using Fruit Flies Demonstrated That

question 20

Multiple Choice

Diane Dodd's experiments using fruit flies demonstrated that

• A)formation of a reproductive barrier between two populations is more likely if they experience and adapt to different environmental conditions.
• B)reproductive barriers usually are absolute-either two populations are fully willing and able to interbreed,or they are strictly separated by a fully effective reproductive barrier.
• C)the evolution of reproductive barriers occurs much too slowly to produce measurable effects in the laboratory.
• D)new species can form in a single generation by the production of new reproductive structures.

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