Is it phototropism when sunflowers turn to face the sun?
When sunflowers turn to face the sun, that’s phototropism. Photo = light; Tropism = turning http://en.wikipedia.org/wiki/Tropism A tropism (from Greek, tropos, to turn) is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the stimulus… http://en.wikipedia.org/wiki/Phototropism Phototropism is directional growth in which the direction of growth is determined by the direction of the light source. In other words, it is the growth and response to a light stimulus.
