1.What is significance of reflex action ?
2.Whst is d importance of response to stimuli?????5 marks
3.xplain 5 phytohormones ..(i imp each)
Plzzzzz ans i ll mark it as brainliest....
Answers
1} Reflex actions are sudden, involuntary reactions of the body in response to stimuli. They occur without the involvement of the conscious areas of the brain. Therefore, all reflex actions are unconscious actions. ... Reflex arc is the path of impulses in the reflex action.
2} Detection of stimuli is important for adaptation, or adjusting to changes in the environment. The human body is equipped with response mechanisms that allow us to adjust to changes within the environment in order for survival.
3} There are five major hormones which are auxin, cytokinin, gibberellin, abscisic acid, and ethylene. Each hormone differs in its effects. The auxins, gibberellins, and cytokinins act as growth stimulators, whereas, abscisic acid and ethylene act as growth inhibitors.