what are polychaete
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polychaete polychaete. n. 1. (Animals) any marine annelid worm of the class Polychaeta, having a distinct head and paired fleshy appendages (parapodia) that bear bristles (chaetae or setae) and are used in swimming: includes the lugworms, ragworms, and sea mice. adj.
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Annelida Annelida. The vast majority of the more than 8,000 known species of polychaete worms are marine; some, however, are found in fresh or brackish water. Annelida: Class Polychaeta-Class Polychaeta The vast majority of the more than 8,000 known species of polychaete worms are ...
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Polysome A polyribosome (or polysome) is a complex of an mRNA molecule and two or more ribosomes that act to form polypeptide chains during active translation. Originally coined ergosomes in 1963, they were further characterized by Jonathan Warner, Paul Knopf, and Alex Rich.
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What is polyploidy? Polyploidy is the condition in which an organism has extra sets of chromosomes. It can be defined as a chromosomal alteration in which the organism posses more than two complete chromosome sets. Classified as an accident in cell division. Polyploidy is the condition in which an organism has extra sets of chromosomes.
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Annelida Annelida (Earthworms, polychaetes, leeches) Life Processes: Annelida live in many different areas and the life processes of annelida is very diverse from one area to another. Aquatic annelida hatch into larvae while land annelida hatch into smaller versions of their adult form.
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- The Elite MPX Aesthetic Workstation is a highly versatile system that allows you to perform multiple laser applications quickly and efficiently for patients of any skin type. The Elite MPX offers the most comprehensive range of hair removal applications available today; treatment of facial and leg veins; treatment of benign
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- Coral Polyps — Tiny Builders. Coral reefs are built by and made up of thousands of tiny animals—coral “polyps”—that are related to anemones and jellyfish.Polyps can live individually (like many mushroom corals do) or in large colonies that comprise an entire reef structure.he polyp uses calcium and bicarbonate ions from seawater to build itself a hard, cup-shaped skeleton made of calcium carbonate (limestone). This limestone skeleton protects the soft, delicate body of the polyp. Coral polyps are usually nocturnal, meaning that they stay inside their skeletons during the day.
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- Cnidaria is a phylum within Kingdom Animalia which consists of hydras, jellies (or jellyfish), sea anemones, and corals. All cnidarians are radially symmetrical, and there are two main radially symmetrical body types. The first of these types is known as a polyp.
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- 3. The present study recorded for the first time 19 polychaete species on the Egyptian Mediterranean Coast of Alexandria. They belong to Syllidae (7 species), Hesionidae (3 species), Serpulidae (2 species) and 7 other families (one species each).. The present study recorded for the first time 19 polychaete species on the Egyptian Mediterranean Coast of Alexandria. They belong to Syllidae (7 species), Hesionidae (3 species), Serpulidae (2 species) and 7 other families (one species each).
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- Segmented wormsmake up the Phylum Annelida. The phylum includes earthworms, leeches, and a large number of mostly marine worms known as polychaetes.Polychaetes (meaning many bristles) have many bristles on the body, while earthworms and leeches have fewer bristles.Some are parasitic, as the leeches; others filter-feed or prey on other invertebrates.egmented wormsmake up the Phylum Annelida. The phylum includes earthworms, leeches, and a large number of mostly marine worms known as polychaetes.
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Polyploidy In addition to polyploid organisms in which all of the body cells contain multiples of the basic chromosome number, most plants and animals contain particular tissues that are polyploid or polytene. Both polyploid and polytene cells contain extra copies of DNA, but they differ in the physical appearance of the chromosomes.
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- Flatbush Zombies (stylized as Flatbush ZOMBiES) are an American hip hop group from the Flatbush section of Brooklyn, New York City, formed in 2010.n September 2014, it was announced that Flatbush Zombies would be touring with The Underachievers, collectively known as Clockwork Indigo. Subsequently, they released a collaborative song titled Butterfly Effect, followed by a full EP titled Clockwork Indigo on October 18, 2014.
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polyp polyp - one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth; in some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase.
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- Bacteriophage (phage) are obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery (i.e., viruses that infect bacteria.). There are many similarities between bacteriophages and animal cell viruses.
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Spirochaete Spirochaetes (also spelled spirochetes) belong to a phylum of distinctive diderm (double-membrane) bacteria, most of which have long, helically coiled (corkscrew-shaped) cells. Spirochaetes are chemoheterotrophic in nature, with lengths between 5 and 250 µm and diameters around 0.1–0.6 µm.
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Polychaetaâ Overview Polychaeta, composed of about 10,000 species, is the larger (and apparently not monophyletic) of the two generally recognized major groups of segmented worms (phylum Annelida) – the other being the Clitellata (earthworms and leeches).
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Polyploid Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent.
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- Class Polychaeta-marine worms-fan worms, feather worms, tube worms, bristleworms, sandworms, etc. Class Oligochaeta-earthworms-both terrestrial and freshwater Class Hirudinea-leeches-mostly freshwater, some terrestrial andmarine.
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diploid Polyploid. (genetics) an organism or cell having more than twice the haploid number of chromosomes.Of a cell or organism having more than twice the haploid number of chromosomes; a polyploid cell; a polyploid species .Organisms that possess two sets of each chromosome.
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- There are also a few parasitic species. The 'Oligo' in Oligochaeta means 'few' just as the 'Poly' in Polychaeta means many, thus the Oligochaeta are the animals with few chaetae, or few bristles. Normally, as in the common earthworms, Oligochaetes have 8 small chaetae per body segment.
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Ptychopetalum Ptychopetalum is a genus of two species of flowering plants in the family Olacaceae, native to the Amazon rainforest.The indigenous name for the genus is Muira Puama, potency wood.t contains long-chain fatty acids, plant sterols, coumarin, lupeol, and the alkaloid muirapuamine. There is a second almost identical species, Ptychopetalum uncinatum, which is sometimes used as a substitute with the only noticeable difference being a lower concentration of the chemical lupeol.
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New species of marine worm discovered in Antarctica A team of scientists has discovered a new species of polychaete, a type of marine annelid worm, 9-meters deep underwater near Japan's Syowa Station in Antarctica, providing a good opportunity to study how animals adapt to extreme environments. Share:
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Polyptych There is a different view when the wings are closed. A polyptych (/ˈpɒlɪptɪk/ POL-ip-tik; Greek: poly- many and ptychē fold) is a painting (usually panel painting) which is divided into sections, or panels.
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Annelid The annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species.he burrowing of marine polychaetes, which may constitute up to a third of all species in near-shore environments, encourages the development of ecosystems by enabling water and oxygen to penetrate the sea floor. In addition to improving soil fertility, annelids serve humans as food and as bait.
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Cnidarians Morphologically, cnidarians are classified as polyps or medusae. Polyps are cylindrical and medusae are circular convex, like an umbrella. Both shapes have tentacles. In general, polyps are sessile although some species, such as Hydra, can move by alternating contact points on the substrate and performing somersaults. Medusae can move expelling water jets through contracting their bodies. Some cnidarians alternate between polypoid and medusoid forms during their life cycle.
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PORE FUNGI Polyporus squamosus is a member of the order Polyporales, a fairly modest group of species causing white rot of a variety of trees. The pore fungi, including P. squamosus have their basidia lining the inner walls of tubes that are bound together into a honeycomb-like tissue as shown at left. This picture was not taken directly above the pores, so they appear to be shallow or blocked, but they really extend several millemeters in.