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Control and Coordination in Plants (Grade - 10)
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The growth of pollen tube towards ovule is an example of
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A
chemotropism
💡 Explanation:
Tropism means movement in response to stimuli. Plants show movement in response to stimuli.
Chemotropism is the movement of plants in response to chemicals. It can be away or towards chemicals, e.g. growth of pollen tubes towards ovules in response to some chemical substances that are secreted by ovules to attract pollen tubes.