what is gill
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Gill A gill (/ɡɪl/) is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist.
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Window A window is an opening in a wall, door, roof or vehicle that allows the passage of light and, if not closed or sealed, air and sound. Modern windows are usually glazed or covered in some other transparent or translucent material. Windows are held in place by frames. Many glazed windows may be opened, to allow ventilation, or closed, to exclude inclement weather. Windows often have a latch or similar mechanism to lock the window shut.
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gills In fishes the gills are located in gill chambers at the rear of the mouth (pharynx). Water is taken in through the mouth, is forced through openings called gill slits, and then passes through the gill clefts, spaces between the ranks of delicate gills, bathing them continuously.n the process of animal evolution, gills first appear in annelid worms, in the form of simple, pectinate, or bipinnate plates and simple or branched filaments. They are located on the lateral motor appendages (in freely moving forms) or at the head end of the body (in those living in tubes).
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- THE COELOM. The coelom is defined as a body cavity or space than runs the length of a vertebrate. It separates the body into an inner tube and an outer tube. The coelom forms when the lateral plate mesoderm splits.I. Divisions.he coelom is defined as a body cavity or space than runs the length of a vertebrate. It separates the body into an inner tube and an outer tube. The coelom forms when the lateral plate mesoderm splits. I. Divisions.
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Use Shareist to Keep Track of Things Online: Similar to Pinterest, but with Private Pages (or Choose to Make Them Public) Showcase the badge. Now that you have the badge, it’s time to use it. Head back to your profile page by clicking “Account” on the right part of the page where you requested the badge. 1  You should be taken to the Accounts, Settings, and Tools for your profile. 2  Scroll down until you see your profile card.. See the user’s profile for more information about the badge. On the avatar profile card, click on “Profile” at the lower left. This will take you to the user’s profile home page. 1  If the badge you want doesn’t appear there, look for another avatar that has it on its home page (step 1 and 2).
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Skin and gill flukes Skin flukes (Gyrodactylus ) and gill flukes (Dactylogyrus ) and fish health. Skin and gill flukes are common fish parasites and in small numbers probably cause little harm. In large numbers both skin and gill flukes represent a serious threat to fish health.
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- The total area is the number of lamellae times the surface area of each lamella. One important aspect is that not all the gill filaments are exposed to water at rest, which minimizes the problems the fish have with osmotic differences between the blood (body) and the water.ach gill arch havs a skeletal component that is important for holding the gill filaments, As you can see in the figure, the blood vessels coming from the heart (in blue) and going to the body (in red) runs through the gill arch.
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Gill A gill (/ɡɪl/) is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist.ills usually consist of thin filaments of tissue, branches, or slender, tufted processes that have a highly folded surface to increase surface area. A high surface area is crucial to the gas exchange of aquatic organisms, as water contains only a small fraction of the dissolved oxygen that air does.
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- Gill, a clinical sonographer specializing in the abdomen and obstetrics and gynecology, teaches sonography students, residents, practicing physicians, midwives, and physician assistants about the use of ultrasound in obstetrics and gynecology.
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gill 1 gill1. 1  the respiratory organ of aquatic animals, as fish, that breathe oxygen dissolved in water. 2  Also called lamella. one of the radiating vertical plates on the underside of the cap of an agaric mushroom. 3  ground ivy. 4  to gut or clean (fish). 5  to catch (fish) by the gills in a gill net.
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Fish - Structure and Function Fish are vertebrate animals, that is, they all have a vertebral column or ‘spine’. There are two main groups of fish, bony fish (Teleosts) and cartilaginous fish (Elasmobranchs). As the common names imply, the skeletons of teleosts are made of bone while the elasmobranchs have cartilaginous skeletons.ll fish are aquatic and breathe by absorbing dissolved oxygen in the water using their gills. The bodies of both teleosts and elasmobranchs are covered with scales but those of elasmobranchs are spiky and project through the skin.
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Spinal and StretchReflexes Spinal and StretchReflexes. A reflex is an involuntary neural response to a specific sensory stimulus that threatens the survival or homeostatic state of an organism. Reflexes exist in the most primitive of species, usually with a protective function for animals when they encounter external and internal stimuli. A primitive example of this protective reflex is the gill withdrawal reflex of the sea slug Aplysia. In humans and other vertebrates, protective reflexes have been maintained and expanded in number.
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Gillette Gillette is a brand of men's safety razors and other personal care products including shaving supplies, owned by the multi-national corporation Procter & Gamble (P&G).
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Leaf A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Leaves are collectively referred to as foliage, as in autumn foliage. Diagram of a simple leaf.
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Gill However, more complex or more active aquatic organisms usually require a gill or gills. Gills usually consist of thin filaments of tissue, branches, or slender, tufted processes that have a highly folded surface to increase surface area.
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fillet A skein, loop of cord, or tape used for making traction on a part of the fetus. fillet. 1. a loop, as of cord or tape, for making traction on the fetus. 2. in the nervous system, a long band of nerve fibers. fillet. n. 1. A narrow strip of ribbon or similar material, often worn as a headband. 2. also filet (fĭ-lā′, fĭl′ā′) a. A strip or compact piece of boneless meat or fish, especially the beef tenderloin. b. A boneless strip of meat rolled and tied, as for roasting.
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Definitions &Translations Gillnetting is a common fishing method used by commercial and artisanal fishermen of all the oceans and in some freshwater and estuary areas.
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- They travel up a river that ends into an area known as The Black Lagoon. Looking for more fossils, they discover the Gill-Man is alive! The Creature is captured and then escapes but is shot and severely wounded at the end.
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- a short oblique stroke (\), a backward slash, used in some computer operating systems to mark the division between a directory and a subdirectory or its folders, as in designating a path. backslash, forward slash, virgule.
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Branchial arch In mammals and birds, the hyoid is still more simplified. All basal vertebrates breathe with gills. The gills are carried right behind the head, bordering the posterior margins of a series of openings from the esophagus to the exterior. Each gill is supported by a cartilagenous or bony gill arch. Bony fish have three pairs of arches, cartilaginous fish have five to seven pairs, and primitive jawless fish have seven. The vertebrate ancestor no doubt had more arches, as some of their chordate relatives have more than 50 pairs of gills.
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gill Medical Definition of gill. : either of two units of capacity:a: a British unit equal to 1⁄4 imperial pint or 8.669 cubic inchesb: a United States liquid unit equal to 1⁄4 United States liquid pint or 7.218 cubic inches.
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- Gill, a clinical sonographer specializing in the abdomen and obstetrics and gynecology, teaches sonography students, residents, practicing physicians, midwives, and physician assistants about the use of ultrasound in obstetrics and gynecology. Ultrasound in obstetrics and gynecology; a practitioner's guide.
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Aquatic respiration In osteichthyes, the gills contain 4 gill arches on each side of the head, two on each side for chondrichthyes or 7 gill baskets on each side of the fish's head in Lampreys. In fish, the long bony cover for the gill (the operculum) can be used for pushing water. Some fish pump water using the operculum.
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Fish gill Gill arches bearing gills in a pike. Most fish exchange gases using gills on either side of the pharynx (throat). Gills are tissues which consist of cloth and fabric structures called filaments.These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.ost fish exchange gases using gills on either side of the pharynx (throat).
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Leaf A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis.Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features.ypically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features.
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- Characteristics: The fins are supported by rays, as the name indicates. In contrast to the cartilaginous fish they have a rigid skeleton. The swim bladder is also a unique feature of most ray-finned fish, enabling them to maintain buoyancy as they move up or down in the water.A gill cover is used to pump water through the gills, enabling the bony fish to breathe without swimming.he fins are supported by rays, as the name indicates. In contrast to the cartilaginous fish they have a rigid skeleton.