Deuterium differs from Hydrogen in having:
(A) Different atomic number but same atomic weight
(B) Different atomic number and different atomic weight
(C) Same atomic number and different atomic weight
(D) None
The atmosphere of moon consists of______________
(A) 90% Hydrogen, 10% Nitrogen
(B) 80%Nitrogen, 20% Hydrogen
(C) 60% Nitrogen, 40%inert gases
(D) None
The dominant phase of life cycle in these organism is haploid
(A) Mosses
(B) Bacteria
(C) Protozoa
(D) None
Which group of animals has heterogametic females
(A) Domestic fowl
(B) Earthworm
(C) Rabbit
(D) None