What is defined as the body’s ability to protect itself from pathogens it is exposed to?

Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over. Hope this kinda helped

Explanation:

answer; i believe its (ovulation);