Skin immunity is a property of skin that allows it to resist infections from pathogens. In addition to providing a passive physical barrier against infection, the skin also contains elements of the innate and adaptive immune systems which allows it to actively fight infections. I hope that this helps.
<em>You could be passing though of someone or something cause...like say </em>
<em>-You had been lied to from a friend ..your thinking of beating your friend up </em>
<em>-You could of have been picked on by the popular kids at school..You want to confront the popular kids that you have had enough !</em>
<em>-You could of have gotten your arm broken by someone twisting it and not saying sorry....You want to tell on that kid</em>
<em>I hoped these answer helped you!</em>
<em>Please thank if possible and have a nice day !</em>
<em>Thank you!</em>
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Each level of the food chain is a trophic level. hope this helps and i'm not too late!
The answer is -- D. A & C