geotaxis


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Related to geotaxis: thermotaxis

geotaxis

[¦jē·ō¦tak·səs]
(physiology)
Movement of a free-living organism in response to the stimulus of gravity.
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References in periodicals archive ?
In the pre-weaning stage, control offspring mastered open field assessment and negative geotaxis earlier than growth restricted offspring.
Settlement site selection by oyster larvae, Crassostrea virginica: evidence for geotaxis.