Which of the following vitamin is known as Cobalamin?
Which of the following vitamin is known as Cobalamin?
A. vitamin B-1
B. vitamin B-3
C. vitamin B-9
D. vitamin B-12
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Which product is obtained in the manufacture of soap from oils:A. Sodium chloride
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C. Fats
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Which group of animals has heterogametic females?A. Domestic fowl
B. Earthworm
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D. NoneMagnifying power of a simple microscope can be increased by ?
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B. Decreasing focal length of the lens
C. Lens of large aperture
D. lens of short aperture
E. None of theseIn a normal human body, the total number of red blood cells is ________?
In a normal human body, the total number of red blood cells is ________?A. 15 trillion
B. 20 trillion
C. 25 trillion
D. 30 trillionWhich lenses are used by people having short-sightedness?
Which lenses are used by people having short-sightedness?A. Convex
B. Concave
C. Concavo-convex
D. PlainChange of state form liquid to solid is _________?
Change of state form liquid to solid is _________?A. Boiling
B. Freezing
C. Evaporation
D. None of these