Which blood cells are called soldiers’ of body?
A. White blood cell
B. Platelets
C. Red blood cells
D. None of these
Which of the following gases is dissolved in water?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. All of these
A. White blood cell
B. Platelets
C. Red blood cells
D. None of these
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. All of these