MP Board · Class 10 · Science · Control and CoordinationDifferentiate between the nervous system and the hormonal system in animals regarding the speed and duration of their control and coordination mechanisms.

Control and coordination in multicellular animals are achieved through two major systems: the nervous system and the hormonal (endocrine) system. They differ significantly in their speed and duration of action. The nervous system utilizes electrical impulses transmitted through nerve fibers, making its response extremely rapid and instantaneous. However, the duration of the nervous response is very short-lived because once the impulse passes, the muscle or organ returns to its normal resting state immediately. Conversely, the hormonal system relies on chemical messengers called hormones, which are secreted directly into the bloodstream by endocrine glands. Due to transport via blood circulation, the onset of a hormonal response is relatively slower compared to nerve impulses. Nevertheless, the effects of hormones are generally long-lasting and can persist for extended periods, influencing metabolism, growth, and development continuously across the organism's body systems.