Question

Immune system is also known as the defence system of our body.

Answer 1

1. The immune system is our body's best self-defensive system.
2. It differentiates between self and non-self.
3. It functions against pathogenic microorganisms and makes us healthy.
4. Immunology is a branch of biology that deals with complex body functions of the immune system.
5. The ability to tackle antigens or pathogens and be healthy is referred to as immunity.