Xerophthalmia and Nightblindness are caused due to the deficiency of?

A. Vitamin A

B. Vitamin D

C. Vitamin K

D. None of these

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The number of chambers in amphibians heart is?

A. Two

B. Three

C. Four

D. Five

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What is needed as a source of energy for vital activities of the body?

A. Iron

B. Calcium

C. Water

D. Carbohydrates

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Hemoglobin (Hb) is a protein that is found in the _____ of the blood.

A. plasma

B. platelets

C. red blood cells

D. white blood cells

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What is essential for the formation of hemoglobin?

A. Iron

B. Calcium

C. Water

D.Carbohydrates

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What is considered as good sources of iodine?

A. Eggs and meat

B. Sea foods

C. Fresh vegetables and fruits

D. Seeds

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The first crystalline hormone is:

A. Thyroxine

B. Nor adrenalin

C. Adrenalin

D. All of the above

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