The Following Diagram Shows the Bone Structure of a Whale

question 9

Multiple Choice

The following diagram shows the bone structure of a whale flipper and a bat wing. Which of the following suggests that these two structures are homologous rather than analogous?

• A)Both the flipper and the wing contain five fingerlike bone projections.
• B)The flipper is formed from the entire front appendage of the whale, but the wing is only formed from the hand part of the front appendage of the bat.
• C)The bones that form the five fingerlike projections in the flipper have much thicker bones than the bones that form these projections in the bat.
• D)The flipper of the whale contains more bones than the wing of the bat.

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