The definition is describing C- self esteem
Answer:
mouth
Explanation:
"Digestion" refers to the breakdown of food from big molecules to small molecules. It immediately starts in the mouth, which is part of the first step called <em>"Ingestion." </em>Food enters the mouth and is<em> masticated</em> with the help of the teeth. This starts the chemical breakdown of carbohydrates. The food then becomes moistened and dissolved, which helps propel it towards the pharynx. It is lubricated here and brought to the esophagus.
<span>cells specialize to form specific tisue and organs because all cells have the same DNA. stem cells can develop into every type of cell inside the body.The cell is the basic unit of structure and function in all living organisms.
</span>