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[A] : In lower invertebrates the digesti...

[A] : In lower invertebrates the digestion is intracellular while in higher forms it is extracellular .
[R] : Extracellular digestion is highly evolved process , it takes place in gut .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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The correct Answer is:
A
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