13.
Viruses are inert
Answer : A. Outside the host cell
14.
W.M. Stanley got Nobel Prize for
Answer : B. Virus
15.
Gnetum is a
Answer : D. All the above
16.
In photosynthesis, the light reaction is known as hill reaction and the dark reaction is known as
Answer : C. Blackman reaction
17.
Oxygen in the universe is replinished by
Answer : D. higher plant photosynthesis
18.
The gas evolved by leaves during photosynthesis is
Answer : B. oxygen