The stomach is one of the important parts of the digestive system. It has three main functions to be performed in the animal or human body. It acts as a temporary storage organ for food which passed from the esophagus to the stomach, facilitates the breakdown and mixing of food components with the digestive juices by contraction and relaxation of the stomach muscles and finally aids in digestion of food.
Based on above description, the mechanical and chemical digestion of food by the stomach the other function includes the food storage.
Stomach is a small pouch like structure which has the ability to store food temporarily.The storage of the food temporarily takes place in the stomach. The food that we eat reaches to the stomach by the help of food pipe.
Here, the food is stored until it is completely broken down into simpler form and enzymes act on them.
The food is then absorbed in the small intestine. But before this food is temporarily stored in the stomach where all the digestive juices and enzymes come to act on the food.
Both natural selection and genetic drift are mechanisms for evolution (they both change allele frequencies over time). The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success.
you can find the volume of an irregular object by immersing it in water in a beaker (or other container) with volume marks and see how much the level goes up.
