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Nataly [62]
3 years ago
5

What is the body's second life of defense? What does it take effect?

Health
1 answer:
german3 years ago
8 0
The bodies second line of defense is its immune system (remember, the first line of defense is the skin) The immune system includes white blood cells, etc etc...... It takes affect when a virus or germ enters the body.. basically any 'foreign cell'..... and the immune system would respond and kill it
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