There Is Some Evidence That Reptiles Called Cynodonts May Have

question 17

Multiple Choice

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then what can be properly said of hair?

• A) It is a shared derived character of mammals, even if cynodonts continue to be classified as reptiles.
• B) It is a shared derived character of the amniote clade, and not of the mammal clade.
• C) It is a shared ancestral character of the amniote clade, but only if cynodonts are reclassified as mammals.
• D) It is a shared derived character of the mammals, but only if cynodonts are reclassified as mammals.

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