science
Grade-4-
Easy
Question
What is INCORRECT about tropism?
- A tropism is a reaction of a plant to something in its surrounding.
- If a plant grows towards a stimulus, it is called positive tropism.
- If a plant grows towards a stimulus, it is called negative tropism.
- None of the above.
Hint:
The plants response to stimulus is positive tropism.
The correct answer is: If a plant grows towards a stimulus, it is called negative tropism.
The correct option is c)If a plant grows towards a stimulus, it is called negative tropism.
Plant growth movement toward a stimulus is termed positive tropism, and movement of the plant/plant part away from the stimulus is termed negative tropism. Tropic motion is defined as either positive or negative tropism and not as downward and upward tropism.
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