Question

Presence of hairs on body surface is the feature of the class

Answer 1

The presence of body hair are the traits of Mammalia class.

The seventh in order of the classification of classes is the class of Mammalia or as generally known as the mammals.

The presence of hair provides an extra protective layer also they easy out sweat out of the person's skin, which is a good thing as if this doesn't happen sweat might cause innumerable health problems.

This(body hair) is the most common method for identifying mammals. They can also be noticed by their Viviparous traits which means that mammals give birth to their young ones directly and not through an egg.

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