[A] : All body cells continuously obtain useful material from, and dispose of their waste products into the external fluid medium. This is mainly maintained as a constancy and is termed excretion. [R]: This is achieved by constant disposal or excretion of all waste products and refuse, as well as, useless materials from body into ex- ternal environments.A. If both A and R 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 and R is falseD. If both A and R are false

[A] : All body cells continuously obtain useful material from, and dis

1.	[A] : All body cells continuously obtain useful material from, and dispose of their waste products into the external fluid medium. This is mainly maintained as a constancy and is termed excretion. [R]: This is achieved by constant disposal or excretion of all waste products and refuse, as well as, useless materials from body into ex- ternal environments.A. If both A and R 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 and R is falseD. If both A and R are false
Answer» Correct Answer - D

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