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Biology Organisms and Populations Organism and its Enviornment Single Correct MCQ
Published on: August 12, 2026

Body compensates for low oxygen availability at due to the altitudes sickness by

A
increasing RBC
B
decreasing binding affinity of haemoglobin
C
increasing breathing rate
D
All of the above

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Verified by Experts
The correct answer is:
D

At high altitude, the body faces low oxygen levels (hypoxia). It compensates by increasing RBC production to carry more oxygen, increasing breathing rate to take in more oxygen, and decreasing haemoglobin affinity so oxygen is released more easily to tissues.

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