Zoology

The immune system is a complex and dynamic network of cells, tissues, and organs that collaborate to defend the body against pathogens and foreign substances. Its primary role is to identify, neutralize, and eliminate harmful agents, including bacteria, viruses, fungi, parasites, and even mutated cells that could lead to cancer. The immune system operates through a well-coordinated series of responses that can be categorized into two main types: innate immunity and adaptive immunity.