You have to put a lid on petri dishes in order to ensure that no outside contaminants get inside the dish.
Answer:
The correct answer is - digestion.
Explanation:
In the human body, almost everybody organ has some system or physiological process that is highly sensitive to random pH changes. Digestion is one of the major physiological processes that also affected by pH fluctuations.
If there is a change in the pH, it will directly affect the process of digestion. The acid that is released by the stomach in the process of digestion is neutralized by the nervous system.
Thus, the correct answer is - digestion.
B osmosis is simplified by water dissolves stuff
The system you're looking for should be "digestive system".
This organ system consists of organs such as mouth, stomach, intestines etc.
Basically, how this system works is that it breaks down complex and insoluble food molecules by using enzymes (chemical digestion) , into simple and soluble molecules which can be absorbed by the body and be turned to energy for our body to work. Examples of chemical digestion is such as enzyme lipase digesting lipids into fatty acids and glycerol. In addition, physical digestion (without enzymes) is also used to help speed up chemical digestions. Examples of physical digestion is where we chew the food we eat into a bolus, which can increase the surface area of the food and the enzyme digestion later on can be faster and more efficient.