which of the following is a nonspecific mechanism used to protect the body against pathogens?
Natural immunity. For example: Your skin is a natural immunity. It is non-specific and is a barrier to the outside world. Your body has various non-specific defenses to pathogens such as bacteria and viruses. But overall the non-specific defense system is made up of skin, epithelial tissue, and mucous membranes which are always on and preventing pathogenic attacks so to speak.