Facts about Rhizaria talk about a supergroup, which consists of unicellular eukaryotes. In 2002, Cavalier-Smith proposed the supergroup. The form of this supergroup’s members is varied. The classification is only conducted by checking the rDNA. Most of them are pseudopods supported by the presence of microtubule, reticulose and filose. Let us get other interesting facts about Rhizaria below:
Facts about Rhizaria 1: protozoan fossils
Most protozoan fossils are accounted by the presence of rhizaria. The mitochondria are also found in almost all members of rhizaria.
Facts about Rhizaria 2: the primary groups
The primary groups of rhizaria include foraminifera, cercozoa, and radiolaria. The marine benthos occupy the first one. The marine planktons make up the latter one.
Facts about Rhizaria 3: Foraminifera
Foraminifera have a granular ectoplasm used to capture food. Most of them have marine life. The aquatic ones only have a few of them.
Facts about Rhizaria 4: the habitat
Most foraminifera settle on the seafloor sediments. The planktonic ones can be found at various depths on the sea. They are floating in the water. Others are living in the brackish and freshwater areas.
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Facts about Rhizaria 5: the structure
The structure of foraminifera is elaborate. The calcium carbonate is the primary component of shells.
Facts about Rhizaria 6: the number of species
The number of species of foraminifera is more than 50,000 species. The fossil ones are 40,000 species. The living ones are 10,000 species.
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Facts about Rhizaria 7: Cercozoa
Single-celled eukaryotes are included in cercozoa. The actin and rRNA are molecular phylogenies to define cercozoa.
Facts about Rhizaria 8: expanded members
Apusozoa and centrohelids are included in the members of Rhizaria due to their genetic similarities with other members of the groups.
Facts about Rhizaria 9: bikont clade
The bikon clade includes Centrohelida, Apusozoa, Excavata, Rhizaria, Chromalveolata and Archaeplastida. Their ancestors are a heterotrophic eukaryote, which owns two flagella. Due to their heterotrophy and motility, rhizaria was considered as an animal. Eventually, it is placed in a separate kingdom called Kingdom Protista.
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Facts about Rhizaria 10: evolutionary relationships
The scientists were interested to find out the data related to the evolutionary of eukaryotes including the rhizaria. It was find out that paraphyletic characteristic was found in Kingdom Protista. The report stated that rhizaria, alveolates and stramenopiles were developed from the same ancestors.
Are you well informed with facts about rhizaria?