1.What is co-odinatioco?
Ans:Systematic working of various organs of an organism (plant and animals) producing a proper response to the stimulus is called co-odinatioco.
2.What is phytohormone?
Ans:They are naturally occurring chemical substances which control one or other aspects of growth. Control and co-ordination in plant done by it.
3.What is Tropic movements?
Ans:Directional plant growth movement in response to an external stimulus.
4.What is Nastic movements?
Ans:Non directional movement of a plant part in response to an external stimulus.