Members of Two Species That Are Each Other's Closest Relatives

question 26

Multiple Choice

Members of two species that are each other's closest relatives are found living sympatrically on a single island. What, if anything, can we conclude about their origins?

• A)One species originated sympatrically from the other.
• B)Both species originated sympatrically from a third species, which has gone extinct.
• C)Neither species originated sympatrically.
• D)One species originated allopatrically on the island and then gave rise to the other one via sympatric speciation.
• E)None of the answer options is correct.

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