Assertion : Vessels are more efficient for water conduction as compared to tracheids.
Reason : Vessels are dead lignified
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
If the Assertion is correct but Reason is incorrect.
If both the Assertion and Reason are incorrect.
Exarch' is the condition of vascular bundles in which
The vessel elements of angiosperms differ from other elements of xylem in having
Both from phyllogenetic and ontogenetic point of view, which tissue is regarded as most primitive
Xylem position in secondary xylem is