1

The small intestine has a big surface area, probably used for absorption of molecules in a very large amount. The surface area for absorption was increase by the folds of the mucosa (membranous lining and the presence of villi).

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After the foods are chewed and take the preliminary digestion through the mouth, the foods now are swallowed and it goes down to the alimentary canal.

2

A mucus will then secrets from the linings of our mouth. The mucus will moisten the food and makes it easy to swallow.

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The function of the digestive system is to break foods into smaller and tiny particles and break this tiny particles into molecules to be able for them to dissolve in the body fluids. After dissolving in the body fluids, the foods now in the form of nutrients passes through the cell walls and used by the body cells.

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The process of releasing energy from the food we eat.

23

Fat build-up can cause permanent hole of a liver that could lead to a severe disease.

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Brief explanation of why stomachs sometimes make that loud growling noise.

20

These are exciting, intriguing, and fascinating strange plants that eat animals.

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A brief overview of digestion.

3

Discover how all these systems work together so that you are to be able to do everything in your everyday life.