Question

Thorns differ from prickles in having

• A. Vascular supply
• B. Endogenous origin
• C. Bark
• D. All of the above

Answer 1

Answer: (D)

All of the above

Thorns are modified branches of stems. They are derived from shoots. They can be branched or unbranched and can have leaves or not. They arise from a bud. Thorns have vascular bundles inside. Prickles are like coarse hairs. They are derived from the bark or epidermis. Prickles do not have vascular bundles inside, so they can be removed more easily. Thorns are endogenous in nature as they arise from internal tissue whereas prickles are exogenous in nature as they arise from the external tissue.

Thus, the correct answer is option D.