Assertion: Xylem vessel is a long cylinderical tube like-structure made up of many cells each with ingnified walls. Reason: Presence of vessels is characteristic feature of gymnospermsA. If both assertion and reason are true and reason is the correct explanantion of assertionB. if both assertion and reason are true but reason is not the correct explanation of assertion.C. if assertion is true but reason is false.D. if both assertion and reason are false.

Assertion: Xylem vessel is a long cylinderical tube like-structure mad

1.	Assertion: Xylem vessel is a long cylinderical tube like-structure made up of many cells each with ingnified walls. Reason: Presence of vessels is characteristic feature of gymnospermsA. If both assertion and reason are true and reason is the correct explanantion of assertionB. if both assertion and reason are true but reason is not the correct explanation of assertion.C. if assertion is true but reason is false.D. if both assertion and reason are false.
Answer» Correct Answer - C Vessels are absent in gymnosperms and pteridophytes wioth the exceptions of a few (e.g., Selaginella species, Gnetum). The presence of vessels is a characteristic feature of angiosperms.