The lifespan of Red Blood Cells is __________ days?
Correct answer: B. 120
- A. 60
- B. 120
- C. 180
- D. 240Chemistry
Explanation
Red blood cells survive for about 120 days before old cells are removed mainly by the spleen and liver. Their limited lifespan is related to the absence of a nucleus and other cell organelles.
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About Human Body and Health
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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