113.
Blood is red in colour due to the presence of ________

114.
Life of red blood cells in the body is

115.
The upper chambers of the heart are the

117.
Fully mature human RBCs has

118.
Which of the following blood group is universal donor?

119.
Human heart is made up of

120.
Antigens 'A' and 'B' are absent in persons belong to blood group

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