Question

Point out differences between Thorns, Spines, Prickles and the Bristles.

Answer 1

Differences between Thorns, Spines, Prickles and the Bristles:

S. No.	Thorns	Spines	Prickles	Bristles
(i)	Modified stem branches that provide protection to the plant.	Modified part of leaf that act as organ of defence.	Superficial pointed outgrowths of the stem or leaves.	Stiff epidermal hairs which become hard due to deposition of silica and calcium carbonate.