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प्रश्न
Multiple choice questions. Tick ( ✓ ) the correct choice:
The four blood groups in humans are
विकल्प
A, B, C and D
A, B, AB and C
A, B, AB and O
A, B, AB and OO
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उत्तर
A, B, AB and O
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संबंधित प्रश्न
Give biological reasons for the following statements:
The left ventricle of the heart has a thicker wall than the right ventricle.
Describe, in brief, the circulatory system in human beings.
Heart sounds are produced due to ______.
-
closure of tricuspid and bicuspid valves
-
rushing of blood through valves producing turbulence
-
closure of atrioventricular and semilunar valves
-
entry of blood into auricles
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Name the following:
The smallest common blood vessels formed by the union of capillaries.
What does the term “double circulation” mean?
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Blood is produced in the bone marrow.
From the following identify the normal haemoglobin count in adult male.
A resting person usually has a pulse rate between 72 to 80 beats per minute.
