A person of which of the following blood groups is called a universal donor?
A. O
B. AB
C. A
D. B
A. O
B. AB
C. A
D. B
A. Thyroid
B. Liver
C. Pancreas
D. None of these
A. Lachrymal
B. Pituitary
C. Thyroid
D. Pancreas
A. Transportation of oxygen
B. Destruction of bacteria
C. Prevention of anemia
D. Utilization of energy
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
A. Chlorine
B. Iron
C. Calcium
D. None of these