$T-$lymphocytes mature in
Bone marrow
Lymph nodes
Bursa of fabricius
Thymus
The pathogen Mircosporum responsible for ringworm disease in humans belongs to
Symptoms of diphtheria is
Resistance against pathogens is due to
During an allergic reaction, the binding of antigens to IgE antibodies initiates a response, in which chemicals cause the dilation of blood vessels and a host of other physiological changes. Such chemicals are