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Advances in systematics have caused the kingdom Protista to crumble. the former kingdom is paraphyletic: some protists are more closely related to plants, fungi, or animals than to other protists. {& plants are a problem: sister clade to "green algae" - but not included in "protists"}

As a result, the kingdom Protista has been abandoned ... Biologists still use 'protist 'informally,

{like 'reptile' or 'dog'} as a convenient way to refer to eukaryotes that are neither plants, animals, nor fungi.

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11y ago

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