kaylee1966 kaylee1966

22-10-2020
Biology

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If a virus gets past your fist line of defense then your second line
of defense kicks in. Describe one of your second line defenses.

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24hcondos 24hcondos

22-10-2020

The second line of defense is a group of cells, tissues and organs that work together to protect the body. This is the immune system.

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