Describe about the defence system of the body.
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The immune system is spread throughout the body and involves many types of cells, organs, proteins, and tissues. Crucially, it can distinguish our tissue from foreign tissue — self from non-self. Dead and faulty cells are also recognized and cleared away by the immune system
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the immune system of our body helps us to fight against the germs. it protect us from infectious viruses. the stronger it is the healthier we are..
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