(A) One
(B) Two
(C) Three
(D) None of the above
The number of Alveoli in human lungs is estimated to be around __ .
(A) 150 Million
(B) 500 Million
(C) 800 Million
(D) 1 Billion
New allele can be introduced into a population gene pool by ___ .
(A) Mutation
(B) Natural selection
(C) Gene flow
(D) Both A & C
Among the following which one is diploblastic organism?
(A) Squid
(B) Hydra
(C) Crab
(D) Earthworm
Which of the following toxic metal is extensively present in the newspaper?
(A) Mg
(B) Cd
(C) Pb
(D) Hg
Which of the following virus has causes thounsands of deaths globally as an emergent virus?
(A) Mers
(B) Sars
(C) OC43
(D) HKUT
Calvin was awarded noble prize in which year?
(A) 1958
(B) 1959
(C) 1960
(D) 1961
Lock and key model of enzyme action is proposed in which year?
(A) 1894
(B) 1895
(C) 1896
(D) 1897