Protist | Definition, Characteristics, Reproduction, Examples, & Facts ...
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 …
Protist - Diversity, Unicellular, Microscopic | Britannica
Nov 7, 2025 · Protists cannot be divided perfectly into algae, protozoa, and fungi. As a result, the protists are spread across the major conventional algal and fungal classifications (in kingdom systems) and …
Protist - Ecology, Habitats, Diversity | Britannica
Nov 7, 2025 · Protist - Ecology, Habitats, Diversity: The distribution of protists is worldwide; as a group, these organisms are both cosmopolitan and ubiquitous. Every individual species, however, has …
protist summary | Britannica
protist , Any member of a kingdom (Protista) of diverse eukaryotes, including algae, protozoans, and lower fungi (see fungus). Most are single-celled organisms, though the algae tend to be multicellular. …
Protozoan | Definition, Parasites, Diseases, Characteristics, Size ...
Dec 17, 2025 · Protozoan, organism, usually single-celled and heterotrophic (using organic carbon as a source of energy), belonging to any of the major lineages of protists and, like most protists, typically …
Protist - Locomotion, Flagella, Cilia | Britannica
Nov 7, 2025 · Protist - Locomotion, Flagella, Cilia: One of the most striking features of many protist species is the presence of some type of locomotory organelle, easily visible under a light …
protist - Kids | Britannica Kids | Homework Help
Most protists are unicellular, which means that they have just one cell. Some protists are made up of clusters of cells. But a protist never has more than one type of cell. Some protists act like animals. …
Myxomycetes | Slime Molds, Fungus-Like & Protists | Britannica
Myxomycetes, phylum of funguslike organisms within the kingdom Protista, commonly known as true slime molds. They exhibit characteristics of both protozoans (one-celled microorganisms) and fungi. …
Protist - Nutrition, Respiration, Metabolism | Britannica
Nov 7, 2025 · Protist - Nutrition, Respiration, Metabolism: At the cellular level, the metabolic pathways known for protists are essentially no different from those found among cells and tissues of other …
Protist - Reproduction, Life Cycles | Britannica
Nov 7, 2025 · Protist - Reproduction, Life Cycles: Cell division in protists, as in plant and animal cells, is not a simple process, although it may superficially appear to be so. The typical mode of reproduction …