- published: 08 Feb 2016
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The Lophotrochozoa (/ləˌfɒtroʊkoʊˈzoʊə/, "crest/wheel animals") are a major grouping of protostome animals. The taxon was discovered based on molecular data. Molecular evidence such as a result of studies of the evolution of small-subunit ribosomal RNA (rRNA) supports the monophyly of the phyla listed in the infobox shown at right.
The word "lophotrochozoan" is sometimes equated with spiralian. When used in a broader sense (sensu lato), it can include rotifers and platyhelminthes. When used sensu stricto, it refers to a subgroup of Spiralia.
The Lophotrochozoa comprise two groups, the trochozoans and the lophophorata. The exact relationships between the different phyla are not entirely certain.
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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Difference between lophotrochozoa and ecdysozoa . , . . . . Difference between lophotrochozoa and ecdysozoa, the two major bilaterian, is discussed in this article. Based on the recent studies using here are some more compilation of topics and latest discussions relates to this video, which we found thorough the internet. Hope this information will helpful to get idea in brief about this. What is the difference between lophotrochozoans, edcysozoans, and the last protostome superphyla are the ecdysozoa, distinguished by molting their a. Ecdysozoans have an exoskeleton that must be shed periodically and lophotrochozoans add on to their bodies to grow below information will help you to get some more though about the subject . The difference between lophotrochozoans and ecdysozoan...
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteichthyen gnathostomal vertebrate cranial chordate. Crash Course Biology is now available on DVD! http://dft.ba/-8css Table of Contents: 1) Chordate Synapomorphies 1:04 2) Cephalachordata 1:20 3) Urochordata 3:16 4) Vertebrata 3:49 a) Myxini 4:30 b) Petromyzontida 4:51 c) Chondrichthyes 5:32 d) Osteichthyes 6:05 5) Biolography 7:29 6) Amphibia 9:02 7) Reptilia 9:47 8) Mammalia 10:57 References for this episode can be found in the Google document here: http://dft.ba/-31eh This video contains the following sounds from Freesound.org: "Moog_wo...
Lophotrochozoans
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Japan Marine Club ® 【ぜひHDでご覧ください】 山口県 北長門海岸国定公園 「青海島」 水温16℃ 水深15m このメジャー?バーコード?虎のしっぽ?のような奇妙な海洋生物はヒモムシと呼ばれ、海底にたまった有機物やコケを食べるナマコなどと似た食性の動物です。 分類的には 界 : 動物界 Animalia 亜界 : 真正後生動物亜界 Eumetazoa 上門 : 冠輪動物上門 Lophotrochozoa 門 : 紐形動物門 Nemertea となります。 まだまだ謎の多い生物ですが、最近の研究で遺伝子から環形動物(ミミズ・ゴカ・、ヒルなど)と軟体動物(ウミウシ・クリオネ・タコなど)に近いのではないかと考えられています。 青海島に棲むこのヒモムシはこんもりと盛り上がった巣穴を中心に周囲の数え切れないほどの穴に出入りして生活し、長い固体は10mを超えるほどです。 撮影:河合良明