Which system is responsible for responsiveness to stimuli?

nervous system

Explanation:

The sensory system is a part of the nervous system. The sensory system includes sensory receptors, neural pathways, and a part of the brain that interprets various stimuli. The eyes, nose, ears, tongue, and skin contain specialized sensory receptors. Therefore, these organs form an important part of the sensory system.

lifetime activities are certain actions that are either required throughout your life or you choose to do them. for example, eating is considered a lifetime activity, drinking water or other beverages, keeping your body clean, taking medicine. those types of actions are considered lifetime activities.

you get into a car crash and die