- published: 09 Jul 2013
- views: 31095
The annelids (Annelida, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies through natural selection; some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments.
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. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of polychaetes. Annelids are considered members of the Lophotrochozoa, a "super-phylum" of protostomes that also includes molluscs, brachiopods, flatworms and nemerteans.
Annelids have segmented bodies, with both a nervous and circulatory system and a one-way gut. They have mastered the art of digging and live in an incredible diversity of habitats. Tube-dwelling worms live in mud flats, stabilizing the mud. Some eat the mud while others collect food from the surface with their tentacles. Blood sucking leeches live in fresh water. Digging in the soil, earthworms both aerate and release nutrients into the soil. - See more at: http://shapeoflife.org/video/phyla/annelids-powerful-and-capable-worms
Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse References: http://www.sciencedaily.com/releases/2010/07/100726222316.htm http://tlc.howstuffworks.com/home/earthworm-appreciation-day.htm http://annelidsf.blogspot.com/ http://www.bukisa.com/articles/41743_amazing-facts-about-arthropods#ixzz1sXW1Jigp http://www.ehow.com/about_6292974_interesting-crustaceans.html crashcourse, crash course, biology, complex animals, annelid, arthropod, segmentation, evolution, diversity, chordate, vertebrate, ancest...
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Official game trailer of Annelids: Worms battle. Get annelids for Android and iOS: https://play.google.com/store/apps/details?id=cz.gdmt.AnnelidsDemo https://itunes.apple.com/us/app/annelids-worms-battle/id964832564 Evil worms battle in fully destructible underground world. • Deathmatch, Team Deathmatch, Capture the Flag, Conquest and King of the Hill game modes. • Single player with great artificial intelligence. • Multiplayer over wifi. Up to 6 players. Requires one time fee. • Procedurally generated maps. • 31 missions, 13 maps, 26 unique weapons and 9 secret ones. Music: Step by step - oglsdl (CC BY 3.0) (http://audiofarm.org/audiofiles/20220)
I explore the wonderful world of annelids, with a focus on their classification, body plans, nutrition, reproduction, life span, lifestyle and evolution.
Wir testen Annelids.
For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ 7activestudio@gmail.com Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. ANNELIDA - GENERAL CHARACTERS AND CLASSIFICATI...
hola youtubers aqui les traigo un juego muy bueno similar a worms llamado annelids, es gratis en la playstore y me lo recomendo Jarid :D Descripción: Gusanos perversos en un mundo subterráneo completamente destruible. • Diferentes modos de juego como: combate a muerte, combate a muerte por equipos, y robar la bandera. • Un solo jugador con una magnífica inteligencia artificial. • Multijugador vía wifi*. Hasta 4 jugadores. • 21 armas únicas y 5 armas secretas. * Solo en la versión completa. "Liero para android" "Worms en tiempo real" link : https://play.google.com/store/apps/details?id=cz.gdmt.AnnelidsDemo&hl;=es Siganme : https://twitter.com/MonsterDroiid Pagina oficial de Facebook: https://www.facebook.com/pages/Monsterdroiid-Pagina-Oficial-Youtuber/630772043646206 Username Minecra...
Annelid worms have incredibly diverse ways of making a living.
Spearfishing at Les Goudes, Marseille, France. The footage comes from a GoPro and was filmed around 15m (50ft). As you can see no fish was caught, but I still had a great time. The cool anemone look alike animal is actually an annelid called Spirographis spallanzani. It is pretty common in the Mediterranean sea. Music : Gorrilaz - All alone Emancipator - Smoke signals Intro wave sound : http://www.freesfx.co.uk/soundeffects/ocean/
Earthworm digging and feeding contributes to the breakdown of organic material in the soil.
A burrowing worm is well adapted for its digging life style.
The nemertean Ramphogordius sanguineus is a macrophagous predator, capable of swallowing prey items whole, and was here recorded feeding on the polychaete Alitta succinea. Feeding behavior was recorded in March 2010. *note: video has been edited from the original. Approximately 2 min of footage occurring between initial proboscis strike and consumption of the annelid was removed. Video recorded and edited by SA Caplins
Tube-dwelling, mudflat worms are adapted to the rhythm of low and high tides.
Mr. Patton gives a brief overview of Annelids while focusing on Oligochaeta
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This can't be nothing
My insides twist in pain
And I focus on the pure things
That I try to make sustain
And I reach out like my father
And I let it eat me up
(Figure out)
(Pre-Chorus)
Take everything I own
I already gave my soul
(Chorus)
It hurts so much, I must get by
I am old enough to know wrong from right
The sight of you is inside of me
I can self-destruct but I'll just sleep
(Verse)
I'm over all these mind games
You make me think the wrong thing
And I try to release anger
Through the music and songs I sing
But the violence that you've brought us
For letting them fuck you
(Fade out)
(Pre Chorus)
Take everything I own
I already gave my soul
(Chorus)
It hurts so much, I must get by
I am old enough to know wrong from right
The sight of you is inside of me
I can self-destruct but I'll just sleep
(Outro)
You're out of this world and disastrous