The word "protozoa" (singular protozoon) was coined in 1818 by zoologist Georg August Goldfuss (=Goldfuß), as the Greek equivalent of the German Urthiere, meaning "primitive, or original animals" …

Oct 19, 2025 · Protozoa are tiny, single-celled organisms that can cause diseases like malaria, giardia, and toxoplasmosis. Protozoan infections can be identified through blood, stool tests, or biopsies.

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 …

Aug 3, 2023 · Protozoa are unicellular eukaryotic microorganisms having a membrane-bound nucleus and other organelles within their cells. Despite their small size, they are incredibly diverse and exist …

What are Protozoa? Protozoa are micro-organisms which have a membrane bound nucleus that can't be categorised as a fungi, animal or plant. Most protozoa are free living, but some are parasitic. They …

Nov 14, 2024 · Protozoa are microscopic, one-celled organisms that can be free-living or parasitic in nature. They are able to multiply in humans, which contributes to their survival and also permits …

Oct 1, 2024 · Protozoa, comprising approximately 50,000 known species, are among the simplest and most primitive of all eukaryotic organisms. They exhibit diverse forms of life, primarily categorized as …

Aug 3, 2023 · Protozoans exhibit mainly two forms of life; free-living (aquatic, freshwater, seawater) and parasitic (ectoparasites or endoparasites). They are also commensal in habitat. They are small, …

Protozoa, a diverse group of single-celled eukaryotic organisms, play important roles in ecosystems and human health. They inhabit various environments, from freshwater to marine systems, and even live …

Protozoa are unicellular eukaryotic microorganisms lacking a cell wall and belonging to the Kingdom Protista. Protozoa reproduce asexually by fission, schizogony, or budding.