The first Layer of skin is called the Epidermis. The cells underneath pack together and prevent bacteria from coming in. Bacteria only comes in when you scrape or bruise yourself.
How does skin protect us from pathogens?
White blood cells make antibodies that fight of the bacteria.Sometimes the white blood cells circle around he bacteria and devour it whole.
What do white blood cells do and how to they prevent bacteria from coming into our body?
An antibody is a blood protein which help target and destroy germs throuh out the body.
What is an antibody and how does it work?
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