Assume that you have found two squirrels that look very much alike. One was found on the north rim of the Grand Canyon and the other on the south rim. How could you prove that they are members of the same species?
a. Compare the overall appearance of the two species.
b. You would have to determine if they can interbreed and produce viable offspring.
c. Determine the time of year each breeds.
d. Consider the number of differences in appearance of the two species.
e. Determine the geographic location of the two squirrels.
Ans: b. You would have to determine if they can interbreed and produce viable offspring.
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