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SIZIF [17.4K]
3 years ago
10

Single-celled organisms need the following to survive

Medicine
1 answer:
BlackZzzverrR [31]3 years ago
7 0
Most organisms need oxygen to survive. The chemical reactions that allow organisms to obtain energy from food use oxygen and release carbon dioxide as a waste product. This means that there must be a steady exchange of oxygen and carbon dioxide into and out of the cell.
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Dental history dates back to ancient civilizations. Who are some of the early
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Dentistry is one of the oldest medical professions, dating back to 7000 B.C. with the Indus Valley Civilization.  However, it wasn’t until 5000 B.C. that descriptions related to dentistry and tooth decay were available.  At the time, a Sumerian text described tooth worms as causing dental decay, an idea that wasn’t proven false until the 1700s!

In ancient Greece, Hippocrates and Aristotle wrote about dentistry, specifically about treating decaying teeth, but it wasn’t until 1530 that the first book entirely devoted to dentistry—The Little Medicinal Book for All Kinds of Diseases and Infirmities of the Teeth—was published.

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posledela

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