- published: 12 Aug 2016
- views: 23895
Gill slits are individual openings to gills, i.e., multiple gill arches, which lack a single outer cover. Such gills are characteristic of cartilaginous fish such as sharks, and rays. Most of these have five pairs, but a few species have 6 or 7 pairs. Shark gill slits are not covered, but lie in a row behind the head. The anterior edge of a gill slit is motile, moving outward to allow water to exit, but closing to prevent reverse flow. This modified slit, called a spiracle, lies just behind the eye, which assists the shark with taking in water during respiration and plays a major role in bottom–dwelling sharks. Spiracles are reduced or missing in active pelagic sharks. While the shark is moving, water passes through the mouth and over the gills in a process known as "ram ventilation". While at rest, most sharks pump water over their gills to ensure a constant supply of oxygenated water. A small number of species have lost the ability to pump water through their gills and must swim without rest. These species are obligate ram ventilators and would presumably asphyxiate if unable to move. Obligate ram ventilation is also true of some pelagic bony fish species. In contrast, bony fishes have a single outer bony gill covering called an operculum.
A gill (i/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. The microscopic structure of a gill presents a large surface area to the external environment.
Many microscopic aquatic animals, and some larger but inactive ones, can absorb adequate oxygen through the entire surface of their bodies, and so can respire adequately without a 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. 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. A cubic meter of air contains about 250 grams of oxygen at STP. The concentration of oxygen in water is lower than air and it diffuses more slowly. In fresh water, the dissolved oxygen content is approximately 8 cm3/L compared to that of air which is 210 cm3/L. Water is 777 times more dense than air and is 100 times more viscous. Oxygen has a diffusion rate in air 10,000 times greater than in water. The use of sac-like lungs to remove oxygen from water would not be efficient enough to sustain life. Rather than using lungs, "[g]asesous exchange takes place across the surface of highly vascularised gills over which a one-way current of water is kept flowing by a specialised pumping mechanism. The density of the water prevents the gills from collapsing and lying on top of each other, which is what happens when a fish is taken out of water."
Gabbroo (Full Song) | Jassie Gill | Latest Punjabi Song 2016 | Speed Records
Bapu Zimidar | Jassi Gill | Replay ( Return Of Melody ) | Latest Punjabi Songs
Attt Karti (Full Song) | Jassi Gill | Desi Crew | Latest Punjabi Songs 2016 | Speed Records
Gal Sun Lai (Full Song) | Jassi Gill | Punjabi Song Collection | Speed Records
Prabh Gill - Mere Kol || Latest Punjabi Song 2015
TERE NAAL PYAR (Full Video) || NACHHATAR GILL || New Punjabi Songs 2016 || Amar Audio
Laden | Jassi Gill | Replay (Return of Melody) | Latest Punjabi Songs 2015 | Speed Records
Jatti - Meet Gill | Latest Punjabi Songs 2016 || Arpan Bawa || VS Records ||
BOSS RAGE! Feat. Gill (Street Fighter 3: 3rd Strike)
Boliyan - Sippy Gill | Gippy Grewal | Happy Raikoti | Punjabi Boliyan 2016
Project by Jaani Singer : Jassie Gill Music : Preet Hundal Lyrics & Composer: Jaani Editor: Adele Periera Colorist: Sarabjeet Sohal Facebook Promotions: Gold Media Mixing and Mastering : Gurjinder Guri Recordist : Akash Banbar Online Promotion : Abc digital Online Promotion : Kalikwest ( Media Da King) Special thanks : EYP Creations Production : Old Skool Films Director : Arvinder Khaira iTunes: https://goo.gl/dTkjDu Digitally Powered by One Digital Entertainment [https://www.facebook.com/onedigitalentertainment] Join Us on Snapchat- Speedrecords Click to Subscribe - http://bit.ly/SpeedRecords Facebook - https://www.facebook.com/SpeedRecords Twitter - https://twitter.com/Speed_Records Instagram - https://instagram.com/Speed_Records
Nokia MixRadio - http://music.nokia.com/in/r/Product/r/r/71337643 Song - Bapu Zimidar Artist - Jassi Gill Album - Replay ( Return Of Melody) Lyrics - Happy Raikoti Music - Jatinder Shah Video by - Virsa Arts Label - Speed Records Airtel Hellotunes - https://www.airtelhellotunes.in/single/index/vcode/009143300006044 Vodafone Subscribers for Caller Tune Direct Dial 5375591637 Airtel Subscribers Direct Dial 5432114336044 to Set as Hello tune (Toll Free) Idea Subscribers for Dialer Tone Direct Dial 567895591637 Airtel Subscribers Direct Dial 5432114336044 to Set as Hello tune (Toll Free) Idea Subscribers for Dialer Tone Direct Dial 567895591637 Digital Partner - One Digital Entertainment [https://www.facebook.com/onedigitalentertainment] Click to Subscribe - http://bit.ly/SpeedRecords Facebo...
Speed Records presents super hit release #AtttKarti by Jassi Gill with Music by Desi Crew. Out Now Worldwide! Speed Records presents super hit release #AtttKarti by Jassi Gill with Music by Desi Crew. Out Now Worldwide! iTunes: https://goo.gl/3cUaQz Apple music: https://goo.gl/otM6e8 Spotify: https://goo.gl/SI7EYA Google Play: https://goo.gl/ZmFJvD Deezer: http://goo.gl/5NeSQn Amazon: https://goo.gl/W2ykb3 Saavn - http://saa.vn/attkarti Artist - Jassie Gill Starring - Jassie Gill And Ginni Kapoor Music - Desi Crew Lyrics - Channa jandali Editor - Sarabjeet Sohal D.O.P - Vikcee & Nanni Gill Art Dir - Sonu Chief Asst Dir - Harman Buttar Asst Director - Satnam Singh Costumes : Vikram A Film by - Arvindr Khaira Mix And Master By - Sameer Charegaonkar (https://www.facebook.com/sameer...
Song - Gal Sun Lai (Full Audio Song) Singer - Jassi Gill Music - G Guri Lyrics - Bablu Sodhi Editor - D Pee Gill Label - Speed Records ___ Enjoy and stay connected with us!! Digitally Powered by One Digital Entertainment [https://www.facebook.com/onedigitalentertainment] Click to Subscribe - http://bit.ly/SpeedRecords Facebook - https://www.facebook.com/SpeedRecords Twitter - https://twitter.com/Speed_Records Instagram - https://instagram.com/Speed_Records SnapChat - https://www.snapchat.com/add/speedrecords
Presenting "Mere Kol" - The biggest Romantic Song of season by sensational Prabh Gill.Song has been penned down by Jaani & Music/ Composition has been given by ace music producer B Praak. Download "Mere Kol" from iTunes - https://itunes.apple.com/in/album/mere-kol-single/id1044159013 Artist - Prabh Gill & Neetu Bhalla Lyrics - Jaani https://www.facebook.com/jaani.lyrics Music & Composer - B Praak http://facebook.com/BPraak Video - Punit S Bedi , Mohit Middha Audio Mixing / Mastering - Gurinder Guri , Akash & Donel Presentation - Jaani Music Label - Sony Music India To set "Mere Ko" as your caller tune - Airtel subscribers Dial 5432115022943 Vodafone subscribers Dial 5376662857 Idea subscribers Dial 567896662857 Tata Indicom subscribers sms SET 6662857 to 543211 Tata Docomo...
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Click to Share on Facebook - http://bit.ly/Laden_JassiGill Song - Laden Artist - Jassi Gill Starring - Jassi Gill & Himanshi Album - Replay (Return of Melody) Lyrics - Happy Raikoti Music - Gupz Sehra Editor - Sarabjeet Sohal Mix & Master - Sameer Charegaonkar D.O.P - VIK-CEE Production - Neeraj Bhatt Asst. Director - ENN SYAN & Varinderpal Bains Directors - Arvinder Khaira & Navjit Buttar Video - Virsa Arts Label - Speed Records The message provided under column L needs to be Annoted on each of the Music Videos (Refer URL under column E) Airtel Hellotune : https://www.airtelhellotunes.in/single/index/vcode/009143300006043 Vodafone Subscribers for Caller Tune Direct Dial 5375591621 Airtel Subscribers Direct Dial 5432114336043 to Set as Hello tune (Toll Free) Idea Subscribers for Dialer T...
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Latest Punjabi boliyan 2016 by Sippy Gill from upcoming Punjabi movie "LOCK" starring Gippy Grewal, Gurpreet Ghuggi, Geeta Basra, Karamjit Anmol and others. The film is directed by Smeep Kang, releasing worldwide on 14th October. Music of the song is given by Laadi Gill and lyrics by Happy Raikoti. Subscribe us and Stay tuned for more updates and videos of movie. Like || Comment || Share || Subscribe ➽ Hear it on Saavn :http://www.saavn.com/s/album/punjabi/Chadd-Gai-Oye-From-Lock-2016/wDC5p-20J1U_ ➽ Buy from iTunes : https://geo.itunes.apple.com/us/album/lock-original-motion-picture/id1163705146?mt=1&app;=music ➽ Subscribe Saga Music : https://goo.gl/T7ZB1k ➽ Like us on Facebook : https://www.facebook.com/sagahits ➽ Check out more updates of LOCK on Facebook : https://www.facebook.c...
Recorded at Toyland Studio in Melbourne Australia April 2009. Video footage taken from the Spider Goat Canyon, Hotel Wrecking City Traders and TERATOVA 2012 tour of Japan. RIZIN BAR TAKAMATSU.
Embryonic Gill Slits by Spider Goat Canyon. Live in Ehime - Japan, November 2012 Filmed by Ben. Recorded on the Teratova/Hotel Wrecking City Traders/Spider Goat Canyon tour of Japan 2012 http://spidergoatcanyon.bandcamp.com/ http://www.spidergoatcanyon.com/
Video shows what gill means. A breathing organ of fish and other aquatic animals.. A gill slit or gill cover.. One of the radial folds on the underside of the cap of a mushroom, on the surface of which the spore-producing organs are borne.. gill synonyms: lamella. Gill Meaning. How to pronounce, definition audio dictionary. How to say gill. Powered by MaryTTS, Wiktionary
gill rays, primary gill filaments, holobranch, afferent branchial artery, hemibranch
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National geographic animals documentary. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans.
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whol...
Nat Geo WILD Sharks Of Lost Island Danger Aniaml Documentary HD Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are...
Shark Attacks and Invades Mississippi River - World Documentaries Sharks are a group of fish defined by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are identified within the clade Selachimorpha (or Selachii) and are the sis group to the rays. The term "shark" has actually also been utilized for extinct members of the subdivision Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Since after that, sharks have branched out right into over 505 species. They vary in size from the tiny dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (...
The Deadliest Shark video. Shark Documentary National Geographic HD 2015. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[1] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes prope...
Amazing Life Shark Discovery channel Documentary HD 2015 Shark documentary Shark attack wildlife Shark Discovery Channel Documentary 2015 Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Wikipedia Scientific name: Selachimorpha Lifespan: 20 – 30 y (In Wild) Speed: 5 mph (Adult, In The Water, Swimming) Rank: Superorder Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the ...
Black Demon Of The Sea | BLACK SHARK - Documentary Movies. Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a par...
Useful for CBSE, ICSE, NCERT & International Students Grade 11 Subject: Biology Lesson : Diversity in living world Topic: Phylum Chordata Video Animals belonging to phylum Chordata are fundamentally characterised by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. These are bilaterally symmetrical, triploblastic, coelomate with organ-system level of organisation. They possess a post anal tail and a closed circulatory system. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
National Geographic - Shark Wranglers - Documentary Don't Forget to subscribe for more videos ! you can watch also : National Geographic - Lord of the Ants - Documentary https://www.youtube.com/watch?v=hqddKbv5Ero Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back ...
I feel like I'm too hard to die man,
I feel like I can't see faded, you know?
I feel like can't no nigga fade me.
I feel like I'm the hardest nigga to walk the earth and shit,
you know what I'm saying?
Blaaah!
Steady comin got you runnin for your damn life
I'm busting shots with this glock, nigga act right
You crossed this nigga how you playin I'm a naughty head
The last bitch got 4 shots to the head
I squeezed off and watched his brain hit the concrete
Last breath, last motherfucking heartbeat.
There was no motive for the murder on the straight tip
And all you can seen was blood and brains every damn where
So I refuse to shoot a nigga in his stomach or his face or his forehead (killa!)
Kill-a-head and the body dead
Come down, your best bet is to sport a vest
nevertheless
I'm leaving a mess
Nigga, fuck your chest
Hollow points leaving brains on the front seat
Fuck with me and I'mma set you free nigga
Pop my trunk check out my funk
Nothing but pumps,
Leave that ass smelling like raw conch
You coochie niggas playing with it you gon get shitted
Metro wants to know who did it
Now aint nobody rapping to the fucking cops
And if they do we coming back for 'lick them blood clots
We killing bitches not to mention snitches everyday
The 9 glock triple platinum in the MIA
Kill-a-head and the body dead
The graveyeard is my home
Tombstones and bones
Murder weapons is the case now don't hearse my bone
Headhunting is my hobby who the victim be
And who's next on my everyday headless spree
My gravedigger got a fade with a nappy top
Now I'm a fool and a freak for them dreadlocks
Quick to pull a trigger cuz that's all I know
Robbing creeps raping hoez and just slanging dope
I got my masters in disaster
I'm like Andrew kick in your door at your hoe mad, your dawg too
I'm new in town your aint heard man Jason Lee
Satisfied to his ass I had him begging please
I went to hell now I'm back and I'm hellafied
Took over down there made the devil cry
I'm a bad motherfucker with a bad rep
I got a trophy in my mouth for every bitch I killed
I killed my wife and my kids, my parents too
I killed my posse and my friends, I'm after you
I crash your party kill your bed smoke some killer man
What the fuck, I'm deaf fucking up, and I'm 'on Kill again
Kill-a-head and the body dead
I'm paranoid 'cause I'm hearing thangs
Time served only out a few months, associated with birds
They wanna plot, but I got bad nerves
Peep, milli 14 on the front seat
You want to be there for your kids, nigga play with it
It's grounds missing who did it? I'mma deal with it
So 'fuck I care about your shawty?
Nigga you been naughty
You skipped town with two pounds of my doo-doo brown
Naw nigga how you playing I done counted that
You wanted work, all you had to do is fucking ask
My cuban friend want his ends
Instead of you flipping the dividends straight to me and him you cop a benz
Silly rabbit you dont started stabbing, now I got to let you have it
Rapid-fire from my automatic
You left me stuck so now you out of luck
'Cause you done fucked my credit up
Ashes to ashes, dust to dust.
Coochie nigga what fuck another minute you won't get to spend it
I'm licking shots like a dread, bitch, Kill-a-head