Question

'Thigmotropism' is the response of the plant to:

• A. Gravity
• B. Water
• C. Light
• D. Contact

Answer 1

The correct option is D Contact

• Thigmotropism is a movement in which a plant moves or grows in response to touch or contact stimuli.
• The prefix thigmo - comes from the Greek word for 'touch'.
• In some plants, thigmotropism occurs when plants grow around a surface, such as a wall, post, or trellis (E.g. Ivy).

So, the correct answer is option D.