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heliotropism |
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heliotropism [‚hē·lē′ä·trə‚piz·əm] (biology) Growth or orientation movement of a sessile organism or part, such as a plant, in response to the stimulus of sunlight. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Our age has transformed Icarian and heliotropic quests into space exploration. As for modern stromatolites, the researchers are not sure why some structures are heliotropic while others in the same region are not. |
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