If you mean "absorption" when you say "circulation", digestion is necessary because the body cannot absorb the nutrients directly from food. The nutrients are "locked" inside. Digestion breaks food apart so that nutrients can be more easily accessed and absorbed.
Yes, digestion starts in the mouth, before peristalsis takes place. The mouth breaks up food, and starts the chemical digestion of starches.
It is important for digestion to take place as part of feeding. The process helps break down food particles that the body can absorb the necessary nutrients.
That would be the large intestine, the final stage of digestion before the remaining products turn into waste.
what is responsible for chemical digestion in earthworms
Were does chemical digestion take place
digestion take place inside the vacoules
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Starch digestion begins in the mouth. Saliva in the mouth enables chemical digestion to take place before starch enters the stomach.
Digestion first takes place in the mouth, then the stomach, and then in the small intestines.
The digestion of food in Amoeba takes place in the food vacuole. :)
No, it is not necessary to put garlic in the fridge. It can be stored in a cool, dry place with good air circulation to maintain its flavor and freshness.
The large intestines is where the final step of digestion takes place.