. The blood leaving the tissues becomes richer in

A: Carbon dioxide

B: Water

C: Hemoglobin

D: Oxygen


Best Answer

Explanation :- 

Blood is a type of fluid connective tissue. 

It helps in the transportation of respiratory gases like oxygen and carbon dioxide. 

Blood has a respiratory pigment known as hemoglobin. 

Blood carries oxygen rich blood to tissues and in turn, receives carbon dioxide.

Now, the blood has a higher concentration of carbon dioxide. 

Hence, the blood becomes richer in carbon dioxide. 

Final answer :- 

The correct answer is carbon dioxide, i.e option (A).


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