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  • Which of the following changes (a-d) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)?Option: 1 Increas

Which of the following changes (a-d) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)?

Option: 1

Increase in red blood cell size


Option: 2

Increase in red blood cell production


Option: 3

Increased breathing rate


Option: 4

Increase in thrombocyte count


Answers (1)

best_answer

When plain dwellers move to high altitudes (3,500 m or more), they typically experience an increase in red blood cell production to cope with lower oxygen levels. Additionally, their breathing rate increases to compensate for the reduced oxygen availability. However, there is no evidence to suggest that red blood cell size or thrombocyte count changes significantly in response to high altitudes. Hence option 2 is the correct answer. 

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manish

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