'''Taxis''' is the movement of organisms either toward or away from a stimulus, such as light (phototaxis), heat (thermotaxis), chemicals (chemotaxis), gravity (geotaxis), and touch (thigmotaxis).
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'''Taxis''' is the movement of organisms either toward or away from a stimulus, such as [[light]] (phototaxis), [[heat]] (thermotaxis), chemicals (chemotaxis), [[gravity]] (geotaxis), and touch (thigmotaxis).