Please help I don't have much time to answer this question! Imagine that a potential pathogen has been able to get through the skin, the first line of body defense What three general defense mechanisms can the body use as a second line of defense to prevent the pathogen from causing a major infection?

The immune system's three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.

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Explanation:

Something that really frustrates me is when people do things when they are not supposed to. This can make me really frustrated.  I use this emotion to do a project, workout, or focus my mind into something important.

Hope this helps, BadAtMath99