The percentage of plasma in human Blood is _________?
Correct answer: B. 55%
- A. 50%
- B. 55%
- C. 60%
- D. 80%
Explanation
Plasma makes up approximately 55% of human blood, while blood cells and platelets together make up roughly 45%. This is why the two standard figures are usually given as 55% and 45%.
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The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.
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