Answer
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Hint: It is a phylum of very small to microscopic marine cycloneuralia sediment-dwelling animals with 37 described species, in nine genera. The phylum was discovered in 1983 by Reinhardt Kristensen, in Roscoff, France.
Complete step by step answer: In biology, a phylum is a level of classification or taxonomic rank below the kingdom and above class. Traditionally, in botany, the term division has been used instead of phylum, although the International code of nomenclature for algae, fungi and plants accepts terms as equivalent. Depending on definitions, The Animal Kingdom Animalia or Metazoa contains approximately 35 phyla; The Kingdom Plantae contains about 14, and Kingdom fungi contain about 8 phyla.
Loriciferans, Cycliophorans and Micrognathozoans are the latest groups of animals to be discovered. Other than all beings microscopic, they have very different body planes and are not closely related. Loriciferans were originally assigned to the Aschelminthes. However, both new molecular and ultrastructural kinds of research have shown that Aschelminthes consists of two unrelated groups, Cycloneuralia and Gnathifera. Loricifera is the most recently reported phylum. It is a phylum of very small to microscopic animals which are sediment-dwellers. They are characterized by a protective outer case called Lorica and their habitat, which is in the space between Marine gravel to which they attach themselves. The Phylum was discovered in 1983 by Reinhardt Kristensen, in Roscoff, France.
Hence, the correct answer is option C.
Note: Micrognathozoa is the most recent major group of animals to be described. They show strong affinities with both Rotifera and Gnathostomulida, especially in the fine structure of the pharyngeal apparatus, where the jaw elements have cuticular rods with osmiophilic cores.
Complete step by step answer: In biology, a phylum is a level of classification or taxonomic rank below the kingdom and above class. Traditionally, in botany, the term division has been used instead of phylum, although the International code of nomenclature for algae, fungi and plants accepts terms as equivalent. Depending on definitions, The Animal Kingdom Animalia or Metazoa contains approximately 35 phyla; The Kingdom Plantae contains about 14, and Kingdom fungi contain about 8 phyla.
Loriciferans, Cycliophorans and Micrognathozoans are the latest groups of animals to be discovered. Other than all beings microscopic, they have very different body planes and are not closely related. Loriciferans were originally assigned to the Aschelminthes. However, both new molecular and ultrastructural kinds of research have shown that Aschelminthes consists of two unrelated groups, Cycloneuralia and Gnathifera. Loricifera is the most recently reported phylum. It is a phylum of very small to microscopic animals which are sediment-dwellers. They are characterized by a protective outer case called Lorica and their habitat, which is in the space between Marine gravel to which they attach themselves. The Phylum was discovered in 1983 by Reinhardt Kristensen, in Roscoff, France.
Hence, the correct answer is option C.
Note: Micrognathozoa is the most recent major group of animals to be described. They show strong affinities with both Rotifera and Gnathostomulida, especially in the fine structure of the pharyngeal apparatus, where the jaw elements have cuticular rods with osmiophilic cores.
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