Which of the following glands secrete tears?
A. Lachrymal
B. Pituitary
C. Thyroid
D. Pancreas
The function of hemoglobin is____________?
A. Transportation of oxygen
B. Destruction of bacteria
C. Prevention of anemia
D. Utilization of energy
The main function of the kidney is ____________?
A. To control blood pressure
B. To control body temperature
C. To remove waste product from the body
D. To help in digestion of food
What is the main component of bones and teeth?
A. Calcium carbonate
B. Calcium phosphate
C. Calcium sulphate
D. Calcium nitrate
The largest part of the human brain is ___________?
A. Medulla oblongata
B. Cerebellum
C. Cerebrum
D. None of these
Total volume of blood in a normal adult human being is
A. 5-6 liters
B. 3-4 liters
C. 8-10 liters
D. 10-12 liters
Cobalt is a material which is ?
A. Strongly attracted by a magnet
B. Not attracted by a magnet
C. Not a magnet
D. Weakly attracted by a magnet