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The cladogram shown here shows similarities and differences among several classes of vertebrates. Anatomically, the four have _____________ limb structure as their common ancestor. We might separate the mammals from the other three classes because they _______________.

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Answer:

homologous; have mammary glands

Step-by-step explanation:

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User Rollerball
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Answer:

homologous; have mammary glands

Step-by-step explanation:

User GeorgeC
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