Specie Circular

Examples of Specie Circular in the following topics:

• Viruses of Archaea

  • The genome is circular and with 24,893 nucleotides is currently the largest known ssDNA genome.
  • Species of the order Ligamenvirales and the families Ampullaviridae, Bicaudaviridae, Clavaviridae, Fuselloviridae, Globuloviridae, and Guttaviridae infect hyperthermophilic archaea species of the Crenarchaeota.
  • Species of the genus Salterprovirus infect halophilic archaea species of the Euryarchaeota.
  • The first archaeal ssDNA virus to be isolated is the Halorubrum pleomorphic virus 1, which has a pleomorphic enveloped virion and a circular genome.
  • The genome is circular and with 24,893 nucleotides is currently the largest known ssDNA genome.

• Overview of Non-Uniform Circular Motion

  • Non-uniform circular motion denotes a change in the speed of a particle moving along a circular path.
  • What do we mean by non-uniform circular motion?
  • The answer lies in the definition of uniform circular motion, which is a circular motion with constant speed.
  • It follows then that non-uniform circular motion denotes a change in the speed of the particle moving along the circular path.
  • This means that the radius of the circular path is variable, unlike the case of uniform circular motion.

• Verrucomicrobia

  • This protein has a unique 3 amino acid insert in all sequenced Chlamydiae, Lentisphaerae and Verrucomicrobia species.
  • In addition, a conserved protein of unknown function is present in all sequenced species from the phyla Chlamydiae, Lentisphaerae, Planctomycetes and Verrucomicrobia.
  • Like the Planctomycetes species, Verrucomicrobia possess a compartmentalised cell plan with a condensed nucleoid and the ribosomes pirellulosome (enclosed by the intracytoplasmic membrane) and paryphoplasm compartment between the intracytoplasmic membrane and cytoplasmic membrane.
  • On the single circular chromosome, 2473 predicted proteins were found, 731 of which had no detectable homologs.
  • A number of as-yet uncultivated species have been identified in association with eukaryotic hosts including extrusive explosive ectosymbionts of protists and endosymbionts of nematodes residing in their gametes.

• Nanoarchaeum and Aciduliprofundum

  • Nanoarchaeum equitans is a species of marine Archaea discovered in a hydrothermal vent off the coast of Iceland.
  • Nanoarchaeum equitans is a species of marine Archaea that was discovered in 2002 in a hydrothermal vent off the coast of Iceland on the Kolbeinsey Ridge by Karl Stetter.
  • N. equitans genome consists of a single circular chromosome, and lacks almost all genes required for synthesis of amino acids, nucleotides, cofactors, and lipids, but encodes everything needed for repair and replication. 95% of its DNA encodes for proteins for stable RNA molecules.
  • Nanoarchaeum has small appendages that come out of its circular structure.

• The Circular Flow Model

  • The basic circular flow model consists of two sectors that determine income, expenditure, and output.
  • The factor owners spend the income on goods which leads to the circular flow of payments .
  • This circular flow is ongoing between households and firms.
  • The circular flow model shows the flow of payments between households and firms.
  • State the function of the circular flow diagram and the production possibilities frontier

• Temperate Bacteriophages: Lambda and P1

  • Once inserted into the host, it circularizes and replicates as a plasmid.
  • Enterobacteria phage λ (lambda phage, coliphage λ) is a bacterial virus, or bacteriophage, that infects the bacterial species Escherichia coli.
  • The head contains the phage's double-stranded circular DNA genome.
  • The cos site circularizes the DNA in the host cytoplasm.
  • In its circular form, the phage genome therefore is 48,502 base pairs in length.

• Coral Reefs

  • Other coral reef systems are fringing islands, which are directly adjacent to land, or atolls, which are circular reef systems surrounding a former landmass that is now underwater.
  • It is estimated that more than 4,000 fish species inhabit coral reefs.
  • In addition, some fish species inhabit the boundaries of a coral reef; these species include predators, herbivores, or planktivores.
  • Predators are animal species that hunt and are carnivores or “flesh eaters.”

• Circular Motion

  • Uniform circular motion describes the motion of an object along a circle or a circular arc at constant speed.
  • Therefore, uniform circular motion indicates the presence of a net external force.
  • The direction of the velocity along the circular trajectory is tangential.
  • The equation for the acceleration $a$ required to sustain uniform circular motion is:
  • In uniform circular motion, the centripetal force is perpendicular to the velocity.

• Phylum Platyhelminthes

  • The Catenulida, or "chain worms" is a small clade of just over 100 species.
  • The epidermal tissue is a single layer cells or a layer of fused cells (syncytium) that covers a layer of circular muscle above a layer of longitudinal muscle.
  • The free-living species of flatworms are predators or scavengers.
  • Some species also have an anal opening.
  • The class Turbellaria includes mainly free-living, marine species, although some species live in freshwater or moist terrestrial environments .

• Classification of Phylum Mollusca

  • Phylum Mollusca is a very diverse (85,000 species) group of mostly marine species, with a dramatic variety of form.
  • The morphology of the shell and the underlying animal can vary from circular to ovate.
  • Today, scientists have identified nearly two dozen extant species.
  • Gastropoda includes shell-bearing species as well as species with a reduced shell.
  • Eyes may be absent in some gastropods species.