Question

The non-directional movement of a plant part in response to temperatureis called ________.a) thermotropismb) Thermonastyc) chemotropismd) thigmonasty

Answer 1

thigmonasty is the answer

Answer 2

"To turn or bend a plant in response to a heat source is called thermotropism.

Nastic movement in plant which is caused by the temperature is called thermonasty.

The plant growth which respond to chemical stimulus are called chemotropism.

In a fungus or plant, nastic movement occurs when touch or vibration which is called as thigmonasty.

Therefore, the non-directional movement of the shoot system of plant in accordance to temperature is called thigmonasty.

Correct option: d"