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| the colloidal and liquid substance of which cells are formed, the cytoplasm and nucleus: no longer in technical use |
| a cell or organism that is genetically identical to the individual from which it was derived |
| geotropism (jē-ŏt'rə-pĭz'əm) Pronunciation Key
The directional growth of an organism in response to gravity. Roots display positive geotropism when they grow downwards, while shoots display negative geotropism when they grow upwards. Also called gravitropism. geotropic adjective (jē'ə-trō'pĭk, jē'ə-trŏp'ĭk) |