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Thursday, March 24, 2011

2.79 Plants and stimuli

stimuli: changes in the environment e.g temperature or light changes.
Receptor: Is in a plant. Its function is to detect the stimuli. After this process will turn into response.
Response: often takes the form of growth. The response between stimuli and the growth is called the tropism.
Tropism: Involves light. This process is called phototropism. 
This involves response to gravity. This process is called geotropism. 







1 comment:

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