The diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches).8 people found this useful.he diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches). 8 people found this useful.
Positive feedback mechanism. A process whereby an initial change in an atmospheric process will tend to either reinforce the process (positive feedback) or weaken the process (negative feedback). See Feedback mechanism.
Summary. Thigmotropism is a movement that occurs with organisms, such as plants, are stimulated by touch. In climbing plants, this helps to direct the pattern of growth around an object that is in contact with the plant. This involves the use of hormones, such as auxin and ethylene, to facilitate the growth process.