Protists are a diverse group of eukaryotes that are primarily single-celled and microscopic and exhibit a wide variety of shapes and life strategies.

Jan 16, 2026 · 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 …

May 1, 2025 · Protists are eukaryotic organisms that can be unicellular or multicellular, and they live in moist environments. Protists can acquire nutrition through photosynthesis, absorbing nutrients, 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.

Many different naming schemes were used over the last couple of centuries, but it has become the most common practice to refer to eukaryotes that are not land plants, animals, or fungi as protists.

Jan 14, 2026 · 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 …

2 days ago · Protists are a remarkably diverse group of organisms that cannot be classified as animals, plants, or fungi, leading to their description as the “catch-all” kingdom of eukaryotes. This grouping …

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 …

Most protists are microscopic, unicellular organisms that are abundant in soil, freshwater, brackish, and marine environments. They are also common in the digestive tracts of animals and in the vascular …