Answer:
Stomach mucus protects the gastrointestinal cells from the damage that gastric juices can cause. Gastric juices are very acidic and without the mucus, the acid can destroy the cells and tissues inside the stomach.
♥ They make use of a control group because its something that they can look into, something to compare to. <span />
Answer:
Ergonomists or human factors engineers.
Explanation:
Egronomics may be defined as the scientific field that includes the interaction of the human psychology with the scientific theory and methods for the well being and overall development of humans.
Egronomists may be defined as the scientists that mainly studies the difefrent factors that affects the human psychology at the work place. The egronomists mainly work to design and evaluation of the different factors that makes the human compatible with their work place.
Thus, the answer is ergonomists.
