Question on: JAMB Biology - 2021
The movement of part of a plant in response to external stimulus of no particular direction is?
A
taxism
B
tropism
C
haptotropic movement
D
nastic movement
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Correct Option: D
Taxism: oriented movement of a motile organism in response to an external stimulus, as toward or away from light.
A tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus.
Ā In tropisms, this response is dependent on the direction of the stimulus.
TheĀ movementĀ or directional growth of plants or plant organs (as the tendrils of climbing plants) in response to the stimulus of touch.
The non-directionalĀ movementĀ (of plants) in response to a stimulus (e.g. humidity, temperature, light irradiance, nutrients, gravity, etc.
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