What is Immune system? Mention the two types of the immune system.
The system which protects our body from pathogens and other foreign invaders is called the immune system. It is of two types. Innate Acquired Innate immunity is non-specific and is present by birth. It includes physical barriers, physiological barriers, cellular and cytokinin barriers. Acquired immunity is pathogen-specific and is obtained with experience. It is of two types- Humoral and cell-mediated
