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The main parts of the first line of defense for the human body against disease are and _ .

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The main parts of the first line of defense for the human body against disease are______ and _______ .

asked Jun 16, 2021 74.9k views

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The main parts of the first line of defense for the human body against disease are______ and _______ .

Biology
middle-school

Silverdagger asked

by Silverdagger

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I believe that the answers are physical and chemical barriers.

Hawkexp answered Jun 20, 2021

by Hawkexp

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The main parts of the first line of defense for the human body against disease are______ and _______ .

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The main parts of the first line of defense for the human body against disease are and _ .