Question

what is protective tissue ? why is epidermis considered as a protective tissue?

Answer 1

Protective tissue means the group of cells which have the common function of protecting the internal organs.
Epidermis is the outer most layer of skin which protects the internal organs of the body. So,it is called as protective tissue.

Answer 2

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The epidermis is considered a protective tissue because its prime purpose is to form a physical barrier between the outside and inside of the body. On the top stratum (layer) of the epidermis, the cells are dead, and so have no physiological function besides to form a barricade against the outside.