Chyme
Chyme is a soupy blend of bolus and digestive juices. The bolus is chewed up food mixed with saliva after it has been swallowed and has traveled down the esophagus into the stomach. After the bolus enters the stomach, the stomach adds digestive juices, a combination of the hormone gastrin, and enzymes such as intrinsic factor, hydrochloric acid, and pepsinogen. Then it becomes chyme. It continues to be chyme until it enters the cecum, when it turns into feces in the colon.
salavary glands
stomach walls
The stomach mechanically/chemically breaks down food. It adds acid and mixes it into the food.
It adds calcium to the soil and helps raise the pH for more acidic soils.
Before food can be used by the body, it has to go through parts of the digestive system. Once food enters your mouth, saliva helps it turn into bolus. The bolus moves to the pharynx and down the esophagus. Now it has reached the stomach. The stomach then adds mucus and digestive acids to the food, and then squeezes and mixes it for 4-6 hours. Then, the food goes through the small intestine. If it still isn't digested, it moves on to the large intestine, which takes it through the cecum and rectum.
Actually, milk is slightly acidic (e.g. lactic acid), in fact milk adds to acidity slightly.
Yes, sun-dried tomatoes are acidic because they contain citric acid as a natural preservative. The acid helps inhibit the growth of bacteria and adds a tangy flavor to the tomatoes.
These are usually accumulated acidic chemicals from industries that are transformed to vapor. When it rains, these chemicals adds with the raindrops. Depending on concentration of the chemicals, the rain becomes acidic. Sometime to the point of actually dissolving materials including human skins.
Because your stomach constantly churns as it adds digestive juices to food. When empty, the air transmits sound waves more easily than when the stomach is full of food.
Gastric juices begins to break foods apart, which, by definition, softens the food into a mash-like substance. It adds lubrication to what the mouth/saliva provided.
The dish washing detergent simply mixes with the water. The contents of the detergent are what lift the grease off the dishes. It changes the pH and adds acids to breakdown protreins found in grease