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Question : Assertion. Primary xylem is exarch in roots and endarch in stems. Reason. Exarch condition of xylem facilitates inflow of water from cortex whereas endarch condition favours ascent of sap

Answer»

If both Assertion and Reason are true and the Reason is a correct EXPLANATION of the Assertion
If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion
If Assertion is true but the Reason is FALSE
If both Assertionand Reason are false

ANSWER :A


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