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taxis

The Columbia Encyclopedia, Sixth Edition | Date: 2008

taxis , movement of animals either toward or away from a stimulus, such as light (phototaxis), heat (thermotaxis), chemicals (chemotaxis), gravity (geotaxis), and touch (thigmotaxis). The turning movements of plants in response to stimuli are called tropisms .

Author not available, TAXIS., The Columbia Encyclopedia, Sixth Edition 2008

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