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olga55 [171]
3 years ago
5

What is the body's first line of defense against bacteria and viruses?

Health
1 answer:
Rashid [163]3 years ago
5 0
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
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As an energy source, To heal and build and repair tissue, To sustain growth, To help transport oxygen to the cells, To regulate body functions. hope this helped :)
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3 years ago
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What is traditional filing​
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What structure is highlighted?
Svetlanka [38]

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b the vocal fold

Explanation:

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