The Apicomplexa (also called Apicomplexia; single: apicomplexan) are organisms of a large phylum of mainly parasitic alveolates. Most possess a unique form of organelle structure that …

Apicomplexa is defined as a phylum of unicellular organisms characterized by an apical complex and the absence of locomotion organelles, which undergo life cycles involving sexual …

apicomplexan, any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. All apicomplexans are parasitic and lack contractile …

Aug 1, 2025 · Apicomplexa are a large group of single-celled parasites found globally, impacting various organisms from invertebrates to humans. These microscopic invaders cause …

The phylum Apicomplexa is a large group of parasitic protists with more than 6,000 described and possibly thousands of undescribed species. All species are obligatory parasites, and …

Mar 19, 2024 · The apicomplexa are a monophyletic group composed almost entirely of parasitic (ie, no free-living) species. Apicomplexa, along with ciliates and dinoflagellates, form a higher …

Definition: What is the Apicomplexa? Previously called Protozoa, along with several other groups, the Phylum Apicomplexa is large and is further divided into 300 genera and over 60 families …

There are no known fossil apicomplexans. However, the group is a very important part of the living biota. Apicomplexans infect both invertebrates and vertebrates; they may be relatively …

One uniting feature of members of Apicomplexa is a specialized complex of organelles at the apex of the cell which facilitates penetration of a host cell during its infective stage.

The Apicomplexa are a large group of protists, characterized by the presence of a unique organelle called an apical complex. They are unicellular, spore-forming, and exclusively …