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Biology 9 Online
OpenStudy (anonymous):

In the human body, which of the following is considered an external defense in the prevention of disease? Answer Fever Histamines Mucous Phagocytes

OpenStudy (anonymous):

Plese Help

OpenStudy (liliakarina):

Mucous, covering the nostrils help fight bacteria that cause diseases, for example.

OpenStudy (anonymous):

Thank you i really needed help on this question

OpenStudy (liliakarina):

You're welcome.

OpenStudy (anonymous):

mucous layering is the 2nd best external defense system of our body after skin....

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