Question

In Bougainvillea thorns are the modifications of ...... A.Stipules B.Adventitious root C.Stem D.leaf

Answer 1

Answer:

Stem gets modified to form perform some specialised functions. The axillary bud of the stem is modified into thorns in Bougainvillea to protect them from their enemies.

So, the correct answer is option D.

Answer 2

In bougainvillea the thorns are modification of stem.

Modification of stipules are seen in smilax.

Modification of adventitous roots are in seen sweet potato.

Modification of leaf are seen in pea (modified leaf tendril).