Xerophthalmia and Nightblindness are caused due to the deficiency of?

A. Vitamin A

B. Vitamin D

C. Vitamin K

D. None of these

(more…)

The number of chambers in amphibians heart is?

A. Two

B. Three

C. Four

D. Five

(more…)

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

A. Iron

B. Calcium

C. Water

D. Carbohydrates

(more…)

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

(more…)

What is essential for the formation of hemoglobin?

A. Iron

B. Calcium

C. Water

D.Carbohydrates

(more…)

What is considered as good sources of iodine?

A. Eggs and meat

B. Sea foods

C. Fresh vegetables and fruits

D. Seeds

(more…)