The immune system protects an organism from diseases, It can detect and respond to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells, The immune system can protect...
There are two systems of immunity in man, which are Natural (Non-specific or innate) immunity, Acquired ( Specific or adaptive ) immunity, Although the two systems of immunity are different, they work together in cooperation...
The life of any living organisms is exposed to continuous threats either from Biological sources (such as pathogens including some insects, animals, protozoa, fungi, bacteria and viruses), Non-biological sources (such as accidents, natural disasters...
