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11.Organisms and Populations
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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
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
(AIEEE-2004)
Solution
It’s obvious.
Standard 12
Biology
Similar Questions
Match Column $I$ with Column $II$ and choose correct option
| Column-$I$ | Column-$II$ |
| $a.$ Aestivation | $(i)$ Over wintering |
| $b$. Hibernation | $(ii)$ Over summer |
| $c.$ Diapause | $(iii)$ Suspended development in zooplanktons |
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