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Nutrition in animal image, Nutrition in animals, These parts together form…
Nutrition in animal 
Different Processes
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Assimiliation
The absorbed substance are transported via blood vessels to different organs of the body where they are used to build complex substances proteins required by the body.
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Parts In Our Body
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The Stomach
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The inner lining of the stomach secretes mucous, hydrochloric acid and digestive juices. The mucous protects the lining of he stomach. The acid kills many bacteria that enter along with the food and makes the medium in the stomach acidic and helps the digestive juices break down the proteins into simpler substances.
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Sweet and tooth decay
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Normally bacteria are present in our mouth but they are not harmful to us. However, if we do not clean our teeth and mouth after eating many harmful bacteria also begin to live and grow in it. These bacteria break down thee sugars present from the leftover food and release acids. The acids gradually damage the teeth. This is called Tooth Decay
If it is not treated in time, it causes severe toothache and in extreme cases result in tooth loose. Chocolate, sweets, soft drinks, and other sugar products are major culprits of tooth decay.
Therefore, one should clean the teeth with a brush or datun and a dental floss at least twice a day and rinse the mouth after every meal. Also, one should not put dirty fingers or any unwanted object in mouth
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Amazing facts
Starfish
Starfish feeds on animals covered by hard shells of calcium carbonate. After opening the shell, the starfish pops out its stomach through its mouth to eat the soft animal inside the shell. The stomach then goes back into the body and the food is slowly digested.
Nutrition in animals
Digestion in humans
We take food through the mouth, digest and utilise it. The unused parts of the food are defecated.
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The inner walls of the stomach and the small intestine and the various glands associated with the liver and the pancreas secrete digestive juices, convert complex substances of food into simpler ones. the digestive tract and the associated glands together constitute the digestive system
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