Wikijunior:Biology/Kingdoms/Protists
Protists
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Most protists are made of single cells. They are bigger than archaea and bacteria, and protist cells have a nucleus.
There are many different kinds of protist cells. Most live in the water, but some live in the soil or in animals. Some protists can cause diseases.
Green algae is in the kingdom Protista. These can be small single cells or very large with many cells. Sea weed is algae and is in the kingdom Protista.