Explanation:
Molecular biology is a branch of biology that concerns the molecular basis of biological activity between biomolecules in the various systems of a cell, including the interactions between DNA, RNA, proteins and their biosynthesis, as well as the regulation of these interactions.
The process is known as peristalsis. These are a serial wave-like movements which moves the food into the digestive tract. It starts in the esophagus, where swallowed food is present, and smooth muscles contract to take the food into the stomach.
Glucose is the simple sugar that provides energy to organisms.
living things are also called organisms
