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Which one of the following statement is ...

Which one of the following statement is in correct ?

A

the residual air in lungs slightly decreaes the efficiency of respiration in mammals

B

the presence of non respiratory air sacs increases the efficiency of respiration in birds

C

in insects circulating body fluids serve to distribute oxygen to tissue

D

the principle of countercurrent flow facilitates efficient respiration in gills of fishes

Text Solution

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The correct Answer is:
C
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  2. People living at sea level have around 5 million RBC per cubic millime...

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  3. Which one of the following statement is in correct ?

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  4. The majority of carbon dioxide produced by our body cells is transport...

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  5. what is vital capacity of our lungs

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  6. the haemoglobin of a human foetus

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  7. Respiratiory centre of brain is sensive to

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  8. Listed below are four respriatory capacities (i-iv) and four jumbled ...

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  9. Which two of the following changes (A-D) usually tend to occur in the ...

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  10. The figure given below shows a small part of human lung where exchange...

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  11. A large proportion of oxygen is left unused the human blood even after...

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  12. Which one of the following is the correct statement for respiration in...

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  13. People who have migrated from the planes to an area adjoining Rohtang ...

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  14. Which one of the following is a possibility for most of us in regards ...

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  15. Bulk of carbon dioxide (CO(2)) released from body tissues into the blo...

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  16. Oxygen dissociation curve of haemoglobin is

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  17. PH of blood in arteries and veins is

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  18. The left lung of human is divided in to

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  19. A major percentage of O(2) is transported by RBCs in the blood.What p...

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  20. What percent (%) of CO(2) is transported as bicarbonate (HCO(3)) with ...

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