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Biology

Biology
Goitre is caused by the deficiency of ________

Chlorine
Iodine
Calcium
Zinc

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Biology
Prothrombin which helps in clotting of blood is released by

lymphocytes
erythrocytes
monocytes
blood platelets

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Biology
Which of the following cells produce antibodies?

Mast cells
Neutrophils
Monocytes
Plasma cells

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Biology
The rate of heartbeat is accelerated by the hormone

Thyroxine
Acetylcholine
Adrenaline
Pituitrin

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Biology
Study of population

Geofraphy
Demography
None of these
Palentology

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Biology
The process in which energy stored in carbohydrates is released

Respiration
Reproduction
Photosynthesis
Excretion

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