You are presented with the question "What is called when plants grow toward the sun or an artificial light?" and the following answer choices: - Exfoliation - Brownian motion - heat energy - phototropism - photovoltaic - autumn - peachleaf willow - mitosis Now knowing that plants exhibit phototropism, or growing toward a light source and many light sources such as the sun and most artificial lights produce unpolarized light, choose the best answer.
The answer to this question is:
phototropism