Why Servant Leadership is Ideal For the Millennial Generation. Retrieved January 18, 2018, from http://ezinearticles.com/?Why-Â­Servant-Â­Leadership-Â­is-Â­Ideal-Â­For-Â­the-Â­Millennial-Â­Generation&id=3092623
Photochemical reaction: Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of moleculesâ absorbing light is the creation of
Freebase (0.00 / 0 votes) Rate this definition: Phototropism. Phototropism is the growth of organisms in response to light. It is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.