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Question
Which of the following acts as a stimulus for geotropism?
Which of the following acts as a stimulus for geotropism?
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Solution
The correct option is D Gravity
The correct answer is Option D.
Explanation for the correct answer:
- Geotropism is the phenomenon where the plant responds to the stimulus of gravity.
- It involves downward movement of the plant parts, like the downward movement of the roots show positive geotropism.
Explanation of the incorrect options:
Option A
Light is the stimulus of the phenomenon phototropism, where the plant responds to the light.
Option B
Water is the stimulus of the phenomenon hydrotropism, where the plant responds to the water.
Option C
Contact is the stimulus of the phenomenon thigmotropism, where the plant responds to the contact or touch.
Final answer: Gravity acts as a stimulus for geotropism.
Gravity
The correct answer is Option D.
Explanation for the correct answer:
- Geotropism is the phenomenon where the plant responds to the stimulus of gravity.
- It involves downward movement of the plant parts, like the downward movement of the roots show positive geotropism.
Explanation of the incorrect options:
Option A
Light is the stimulus of the phenomenon phototropism, where the plant responds to the light.
Option B
Water is the stimulus of the phenomenon hydrotropism, where the plant responds to the water.
Option C
Contact is the stimulus of the phenomenon thigmotropism, where the plant responds to the contact or touch.
Final answer: Gravity acts as a stimulus for geotropism.
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