👉 The term "Oppoidea" is a genus within the phylum Apicomplexans, which are a group of bacteria that have a unique structure and physiology that allow them to live in water environments, such as freshwater lakes, rivers, and oceans. These bacteria have an outer membrane system, making them able to survive on a wide range of substrates and nutrients. The term "Oppoidea" is often used to describe the diverse group of bacteria that inhabit these aquatic environments.