+Tropism is the innate bending or turning of an organism, often a plant, in response to an external [Stimulus](/wiki/stimulus). This guided [Growth](/wiki/growth) allows organisms to orient themselves optimally towards resources like light or away from threats.
+## See also
+- [Phototropism](/wiki/phototropism)
+- [Gravitropism](/wiki/gravitropism)
+- [Hydrotropism](/wiki/hydrotropism)
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