Answer:MISSING ANSWER OPTIONS
Explanation:
Answer:
The answer is B: Cystic fibrosis.
Explanation:
Cystic fibrosis is a SERIOUS hereditary disease, which not only damages the lungs but also the digestive system and is characterized by affecting the cells that produce mucus, sweat and gastric juices. These fluids are altered in their composition, becoming thick and sticky which lead to an obstruction of the ducts.
Feedback loop
- feedback means telling whether it was good or bad or in this case, works or not.
Answer: B- chemicals (changing pH)
Explanation:
Chemoreceptors in the bodies and archs that are sensitive to changes in carbon dioxide, oxygen, and pH.
