The tree of life showing the position of protists, from which all other eukaryotes evolved. Protists are a diverse group of eukaryotes that are primarily single-celled and microscopic and exhibit a wide …

Nov 7, 2025 · protist, any member of a group of diverse eukaryotic, predominantly unicellular microscopic organisms. They may share certain morphological and physiological characteristics with …

Feb 2, 2023 · Protists are the oldest eukaryotic microorganisms, having a nucleus and other membrane-bound organelles. Since they do not wholly fit into other groups like plants, animals, bacteria, or …

Aug 5, 2025 · Protists include anything from single-celled algae to parasitic protozoa, from slimy molds creeping across decaying logs to golden-brown diatoms floating in the ocean.

Nov 27, 2025 · Protists make up a large group of eukaryotic organisms on Earth that are not plants, animals or fungi. The kingdom of Protista includes unicellular and multicellular organisms that are …

Aug 25, 2023 · Definition: any of a group of eukaryotic organisms belonging to the Kingdom Protista. What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are …

Because the name “protist” serves as a catchall term for eukaryotic organisms that are not animal, plant, or fungi, it is not surprising that very few characteristics are common to all protists. On the other …

The first is a phylogeny-based definition; that protists are all eukaryotes that are not animals, fungi, or land plants (Embryophyta). The second concept includes various definitions based on biological …

May 1, 2025 · Protists can be grouped according to similarities in many different categories including nutrition acquisition, mobility, and reproduction. Examples of protists include algae, amoebas, …

Eukaryotic organisms that did not fit the criteria for the kingdoms Animalia, Fungi, or Plantae historically were called protists and were classified into the kingdom Protista.