‘Black water fever' is a very serious complication of
P. ovale
P. falciparum
P. malariae
P. vivax
The use of tobacco is originated in
All of the following are examples of mucosa associated lymphoid tissue except
In the given flow chart, the replication of retrovirus in a host cell is shown. Observe it carefully and fill up the blank $A, B$ and $C$
What constitutes the Immune system and what role does it play in the Human body ?
Lysozyme that is present in perspiration, saliva and tears, destroys