Which of the following is NOT correctly matched with the organ system.
A. Anxiety- Nervous system
B. Nausea- Digestive system
C. Weight loss- digestive system
D.Joint pain-skeletal system

The correct answer is

A. Anxiety- Nervous system

Explanation:

Anxiety has nothing to do with the Nervous system; the nervous system is the nerves in your body and is not what makes you nervous or anxious. All the other answer choices are correct.

A negative feedback system is one that when it moves away from its desired state, acts to push itself back toward that state. Thus negative feedback is a method for maintaining stability. Thermoregulation is what the body does to maintain homeostatis, an (approximately) constant body temperature.