What Is True of the Flightless Cormorants of the Galápagos

question 5

Multiple Choice

What is true of the flightless cormorants of the Galápagos Islands?

• A) They are descendants of the same common ancestor that gave rise to the unique finches of these islands.
• B) They are close relatives of flightless cormorants from the Americas.
• C) If they are still able to breed successfully with flying cormorants, it would probably be with North American cormorants, rather than with South American cormorants.
• D) Flightless cormorants on one island have restricted gene flow with those on other islands, which could someday lead to a macroevolutionary event.
• E) Their DNA has low levels of sequence homology with the DNA of flying American cormorants.

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