Question

3.
4. Mention some features of mammals.​

Answer 1

Answer:

Mammals have four limbs and produce amniotic eggs. The mammal class is defined by the presence of mammary glands and hair (or fur). Other traits of mammals include sweat glands in their skin, alveoli in their lungs, a four-chambered heart, and a brain covering called the neocortex.

Explanation:

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Answer 2

Answer:

1. mammals do not lay eggs

2. they give birth to young ones

3. they have four limbs

4. they have presence of mammary glands