Question

question 5
the epidermis:
a protects the skin against mechanical injury
b retains water in deeper skin layers
c all of the above
d keeps out harmful chemicals and pathogens

Explanation:

The epidermis is the outermost layer of the skin. It has multiple functions. It acts as a physical barrier, protecting the skin against mechanical injury (Option A). It also helps in retaining water in deeper skin layers (Option B) and keeps out harmful chemicals and pathogens (Option D). Since all these functions are correct, the answer is "all of the above".

Answer:

C. all of the above