Answer:
B. Epidermis is a barrier to pathogens
Explanation:
The skin has three different layers: the epidermis, dermis, and hypodermis.
The epidermis is the top layer of the skin. It has multiple purposes, but it is especially important for protection. It prevents chemicals, bacteria, viruses and other harmful substances from entering our bodies.
When the skin is burned, the epidermis the first layer to burn, since it is the outermost layer. If it burns, the barrier is broken, leaving the body susceptible to bacteria and viruses, also known as pathogens. Pathogens are the cause of infections.
Therefore, the best answer choice is B. the epidermis is a barrier to pathogens
