Ravi, who lived at sea level, had around $5$ million $RBC$ per cubic millimeter of his blood. Later when he lived at an altitude of $18,000 ft$, showed around $8$ million $RBC$ per cubic millimeter of blood. This is an adaptation because
Ravi, who lived at sea level, had around $5$ million $RBC$ per cubic millimeter of his blood. Later when he lived at an altitude of $18,000 ft$, showed around $8$ million $RBC$ per cubic millimeter of blood. This is an adaptation because
- [AIEEE 2004]
- A
At high altitude he ate more nutritive food
- B
He had pollution free air to balance breathe
- C
At high altitude $O_2$ level is less hence more $RBCs$ were required to absorb enough oxygen
- D
At high altitude there is more $UV$ radiation which enhances $RBCs$ production
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