ICSE Class X Biology 2019 Solved Papers

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SECTION - II

Given below is an experimental setup to demonstrate a particular tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
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Question : 41
Total: 96
What is meant by 'Positive' and 'Negative' tropic movements in plants?
Solution:  
Positive tropic movement : When the plant part grows towards the source of stimulus is called positive tropic movement.
Negative tropic movement: When the plant part grows away from the source of stimulus is called negative tropic movement.
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