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Biology

Biology
Important component that helps in clotting of the blood is called ________ .

Platelets
Plasma
Serum
Haemoglobin

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Biology
Pellagra and Scurvy are caused by which pair of vitamin deficiency respectively ________

VitaminB-12 and VitaminC
VitaminC and VitaminA
Vitamin A and VitaminB-12
VitaminC and VitaminD

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Biology
Anaemia is due to deficiency of

P
Mg
Fe
Ca

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Biology
Which of the following has the largest number of chromosomes?

Human beings
Bryophytes
Pteridophytes
Elephants

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Biology
Administering a vaccine provides protection by inducing synthesis of antibodies (proteins) specific of the vaccine. The cell in the body responsible for the production of antibodies is

Platelet
Lymphocyte
Granulocyte
Erythrocyte (red blood cell)

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Biology
Study of ductless gland is called

Ecology
Embrayology
Euthenics
Endocrinology

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