Carol is enjoying eating her dinner. while eating, she notices that her saliva secretion is higher than normal, and that she feels good and relaxed. what causes this relaxed state?
parasympathetic nervous system
sympathetic nervous system
peripheral nervous system

Parasympathetic nervous system

The nervous system has three general functions: a sensory function, an interpretative function and a motor function. 1. Sensory nerves gather information from inside the body and the outside environment. The nerves then carry the information to the central nervous system (CNS). 2. Sensory information brought to the CNS is processed and interpreted. 3. Motor nerve cells convey information from the CNS to the muscles and glands of the body. The nervous system is responsible for coordinating all of the body's activities.

The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.