Definition
Protozoa are single-celled eukaryotic organisms that are heterotrophic, meaning they obtain nutrients by consuming other organic matter. They are often referred to as animal-like protists because they can move and ingest food, unlike plants. They inhabit various environments, including soil, water, and inside other organisms. Some are parasitic, causing diseases like malaria and giardiasis. They're like the tiny hunters and gatherers of the microbial world. 🐾