Standard Science Primary 3 Diversity

Which of these is a characteristic that ONLY mammals have?

A They can move from place to place.
B They lay eggs.
C They have an outer covering.
D They produce milk for their young.
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Worked Solution

Step 1: Many animal groups move or have coverings. Step 2: Only mammals possess mammary glands to produce milk. Step 3: This is a unique identifier for mammals.

Correct answer: They produce milk for their young.

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