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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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10y ago
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12y ago
  • In the past, taxonomists classified all protists in a single kingdom, Protista.
  • However, it is now clear that Protista is in fact paraphyletic.
  • Some protists are more closely related to plants, fungi, or animals than they are to other protists.
  • As a result, the kingdom Protista has been abandoned.
    • Various lineages are recognized as kingdoms in their own right.
  • Scientists still use the convenient term protist informally to refer to eukaryotes that are not plants, animals, or fungi.
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Q: Why has the Kingdom Protista been abandoned?
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