Which of the following features was NOT present in the last common ancestor of all mammals? Giving birth to live young. Three bones present in the middle ear. Nursing young with milk from mammary glands. Hair. Single bone in the lower jaw.
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Step 1: Identify the features present in the last common ancestor of all mammals: - Giving birth to live young - Three bones present in the middle ear - Nursing young with milk from mammary glands - Hair - Single bone in the lower jaw Show more…
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