protozoai
Protozoa is a broad classification for a diverse group of eukaryotic microorganisms. Historically, "protozoa" was a kingdom within the Linnaean system, but it is no longer considered a formal taxonomic rank. Instead, these organisms are now distributed across various groups within the domain Eukarya, often residing in phyla like Protista, or within more specific classifications like Alveolata, Amoebozoa, and Excavata. The defining characteristic of protozoa is that they are single-celled organisms that are not fungi, plants, or animals.
Protozoa exhibit a wide range of lifestyles. Many are free-living, found in aquatic environments such as oceans,
Reproduction in protozoa can occur asexually, through processes like binary fission, or sexually, involving the exchange