Multiple choice general knowledge history

The movement of a plant part toward or away from a source of heat is called

  1. Metamotropism

  2. Monomotropism

  3. Thermotropism

  4. Theomotropism

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C Correct answer
Explanation

Thermotropism is the directional growth or movement response of plants to temperature or heat stimuli. The prefix 'thermo-' refers to heat. Plants may grow toward or away from heat sources depending on the species and conditions. 'Metamotropism' and 'Monomotropism' are not valid biological terms. 'Theomotropism' appears to be a fabricated distractor.