Q.

Movement of hairs in Drosera is referred to as –

A. Heliotropism
B. Thigmotropism
C. Photonastic
D. Seismonastic
Answer» B. Thigmotropism
Explanation: Thigrnonasty (thigmotropism) refers to plant movement in response to touch or physical contact without regard to the direction of the stimulus. Thigmonastic movements are exemplified by the closing of the insect-eating plant Venus's flytrap (Dionaea muscipula) and the bending of the glandular hairs of sun-dew (Drosera sp.) as a result of contact with an insect.
1.9k
0
Do you find this helpful?
5

View all MCQs in

Biology (GK)

Discussion

No comments yet