The answer is  Antibody , adaptive Â
The body's natural defence system which fight against the infection is called immune system. The immune system keeps record in the form of white blood cells, namely B-cell and T-cell for every microbe they have defeated after first attack. These cells are called memory cells. Memory cells recognizes the microbe which tries to enter the body. Â The microbe gets destroyed by producing antibody. This type of immune response is called adaptive immune response. Â Â Â
