121.
Metal present in Haemoglobin

122.
The right portion of human heart receives ________ blood.

123.
Arteries supplying blood to the heart are called

124.
The plasma of the blood contains which among the following constituents?
I. Proteins
II. Salts
III. Hormones

125.
Antibodies is produced in the plasma of blood by

126.
Which one among the following statements is correct?

127.
To complete one heart beat the time taken is

128.
Pace maker is related with

129.
PH of human blood is

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