The basic structural and functional unit of living organisms is-

The first Indian communication satellite was-

H5N1 adds to influenza? 

Name of the branch of Gynecology in which scientific study of animal behavior is done 

When a wave is intercepted by an article, the rays bend round the obstacle particle. The phenomenon is known as-

Which electromagnetic radiation is used for satellite communication? 

Which of the following pairs is not matched?
(A) James Watt : Vapour Engine
(B) A. G.  Bell : Telephone
(C) J.L. Baird : Television
(D) J. Perkins : Penicillin