Protozoa
원생동물
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<speciesfyi-glossary slug="protozoa"></speciesfyi-glossary>Definition
Single-celled eukaryotic organisms that feed on organic matter, playing key roles in nutrient cycling and food webs.
Detailed Explanation
Protozoa are extraordinarily diverse in locomotion — amoebae use pseudopods, ciliates use hair-like cilia, flagellates use whip-like flagella. As predators of bacteria, they regulate microbial community composition and accelerate nutrient cycling. Pathogenic protozoa include the causative agents of malaria (Plasmodium), sleeping sickness (Trypanosoma), and leishmaniasis (Leishmania) — diseases affecting hundreds of millions of people globally.