Answer:
protista
Step-by-step explanation:
The protist kingdom groups eukaryotic, unicellular, autotroph, and heterotroph organisms. In this realm are the lower algae: euglenophytes, pyrrophytes (dinoflagellates) and chrysophytes (diatoms), which are autotrophist protists (photosynthesizers). Protozoa are heterotropic protists.
Protists are the group of organisms most closely related to archaea. This was one of the reasons why a new classification of living beings was created in 1993, where the kingdoms of bacteria were separated and the Archeobacteria group was created. Protists without mitochondria were identified and separated from the Protist kingdom as part of the new Archezoa group. Some of the 8 kingdoms changed and the new classification became Eubacteria, Archaebacteria, Archezoa, Protozoa, Chromist, Plantae, Fungi and Animalia.