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Assertion. Vertebrates have `O_(2)` -carrying pigment in the erythrocytes. Reason. Nonchordates eith lack `O_(2) -` carrying pigment or have it in the plasma . They need less oxygen due to slow metabolism.A. If both A and B are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false

Answer» Correct Answer - A


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