Intestines
The first animals to have anything like an intestine evolved around 548 million years ago. These were roundworms, and they had
Stomach
Digestive system
Plants
Animals
To find out more about cells, check out these books from Amazon.com or from your library:
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Cells
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History for Kids home page
Cite this page: Carr, Karen. "" Kidipede - History for Kids. 2011. http://www.historyforkids.org/scienceforkids/biology/animals/digestion/intestines.htm
