For Purposes of Differentiation,what Is the Unique Feature of the Jaw

question 1

Multiple Choice

For purposes of differentiation,what is the unique feature of the jaw fossils of non-mammalian tetrapods?

• A)The lower and upper jaws hinge between the same bones.
• B)The lower jaw is composed of several bones.
• C)There are three bones in the middle ear.
• D)Teeth are differentiated for function.

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