Question

Thorn is a modified branch because ________.

• A. It is hard, straight and pointed.
• B. It is a part of the plant.
• C. It arises in the axil of a leaf.
• D. It is a defensive organ.

Answer 1

The correct option is C It arises in the axil of a leaf.

Thorn is a modified branch because it arises from the bud present in the axil of leaves that is meant to develop in a branch. It is a defensive modification as it is hard, straight, and pointed and so it prevents grazing by herbivores.

Hence, the correct answer is option C.