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Question
Movements of tentacles in Drosera are
Movements of tentacles in Drosera are
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Solution
The correct option is B Thigmonastic
Nastic movements are responses of plant parts to stimuli. Photonastic movement is the nastic response of plant in response to light. Thermonastic movement is the a nastic response of plant in response to change in temperature. Seismonastic movement is the nastic response of a plant to touch or vibration. Dropping of leaves of Mimosa pudica upon touching is due to seismonasty. Thigmonastic movement is the nastic response of a plant to touch. The movements of tentacles of Drosera when comes in contact with insect is due to thigmonasty.Thus, the correct answer is option C.
Nastic movements are responses of plant parts to stimuli. Photonastic movement is the nastic response of plant in response to light. Thermonastic movement is the a nastic response of plant in response to change in temperature. Seismonastic movement is the nastic response of a plant to touch or vibration. Dropping of leaves of Mimosa pudica upon touching is due to seismonasty. Thigmonastic movement is the nastic response of a plant to touch. The movements of tentacles of Drosera when comes in contact with insect is due to thigmonasty.
Thus, the correct answer is option C.
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