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Question :Assertion :-Ontogenically tracheids are unicellular and vessels are multicellular. Reason :-Tracheids are made up of single cell while vessel is made up of several vessel elements.

Answer»

If both ASSERTION & REASON are True & the Reason is a correct explanation of the Assertion.
If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
If Assertion is True but the Reason is FALSE
If both Assertion & Reason are false.

Answer :A


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