Which of the following contains mammary glands?
Correct answer: D. All of these
- A. Metatheria
- B. Eutheria
- C. Prototheria
- D. All of these
Explanation
Mammals belong to Mammalia, a class of kingdom Animalia, in which the newlyborns are nourished with milk from the mother's mammary glands. Prototheria, Metatheria, and Eutheria are the subclasses of Mammalia, so all of them possess mammary glands.
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