What is the main lymphoid organ where all blood cells including lymphocytes are produced?
Bone marrow
Tonsils
Liver
Spleen
The disease filariasis is transmitted by
Drugs, shocks and psychotherapy are the treatments of
Interferon is inhibitory to
A cyst of Entamoeba histolytica produces trophozoites
In which of the following disorders, person will become hypersensitive about ones look?