Fruit Fly Species All Look Similar to One Another

question 52

Multiple Choice

Fruit fly species all look similar to one another. If you have a male and a female fruit fly, how can you prove that they are the same species, according to the biological species concept?

• A)Determine the base sequence of the DNA of their chromosomes.
• B)Examine them closely with a low-power microscope, comparing their physical characteristics to published species key lists of characteristics.
• C)If they mate when they are put together, they are the same species.
• D)If they mate successfully and their offspring are fertile, they are the same species.
• E)If they can asexually reproduce and their offspring can also successfully asexually reproduce, they are the same species.

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