why do our gud lining contract and relax
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Answer:
rythm
Explanation:
due to rythmic ggfvv
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Explanation:
The gut (gastrointestinal tract) is the long tube that starts at the mouth and ends at the back passage (anus).The gut (gastrointestinal tract) processes food - from the time it is first eaten until it is either absorbed by the body or passed out as stools (faeces). The process of digestion begins in the mouth. Here your teeth and chemicals made by the body (enzymes) begin to break down food. Muscular contractions help to move food into the gullet (oesophagus) and on to the stomach. Chemicals produced by cells in the stomach begin the major work of digestion.
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