Why is immune system essential for our health?
Question:

Why is immune system essential for our health?

Solution:

Immune system is body defence system against various types of pathogens. It has many componentsphagocytic cells, natural killer cells, T-lymphocytes and B-lymphocytes. B-lymphocytes produce antibodies against pathogens and their toxins. Immune system keeps the body healthy by killing infecting microbes.

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