Your stomach growls when it is empty, the noise is caused from air pushing through your digestive system.
They bark and growel and make other sounds like domestic dogs.
Yes, stomach growling, or borborygmi, is a common physiological occurrence experienced by most people. It typically happens when the stomach and intestines are empty, signaling hunger or the movement of gas and fluids through the digestive tract. While the intensity and frequency can vary among individuals, it's a normal part of digestion and not a cause for concern.
stomach acid is already in your stomach...
The stomach the stomach the stomach's job is to churn and mixed and digest food until it's a liquid.
Stomach
In Canada you spell 'stomach' ... stomach.
Fish that have a stomach, generally secrete stomach acid (HCl). However, not all fish have a stomach. For example carp have no stomach and thus no stomach acid secretion.
The stomach stretchy muscular sac holds food.
Hydrochloric acid of the stomach would have a pH of ~ 2.
The stomach
Chyme is created in the stomach through the mixing of food with gastric juices containing hydrochloric acid and digestive enzymes. This semi-liquid mixture is then passed into the small intestine for further digestion and absorption of nutrients.
The stomach is inferior (below) to the diaphragm.The diaphragm is superior (above) to the stomach.