How does chemical coordination occur in plants?

(N/A) In animals,control and coordination occur with the help of the nervous system. However,plants do not have a nervous system.
Plants respond to stimuli by showing movements. The growth,development,and responses to the environment in plants are controlled and coordinated by a special class of chemical substances known as hormones or phytohormones.
These hormones are produced in one part of the plant body and are translocated to other parts where they are required.
For example,a hormone produced in the roots is translocated to other parts when needed.
The five major types of phytohormones are auxins,gibberellins,cytokinins,abscisic acid,and ethylene.
These phytohormones are either growth promoters (such as auxins,gibberellins,cytokinins,and ethylene) or growth inhibitors (such as abscisic acid).