Maksud "agnathan" dalam kamus Corsica

ETIMOLOGI PERKATAAN AGNATHAN

From New Latin agnatha, from a-1 + Greek gnathos jaw.

Etimologi adalah kajian asal perkataan dan perubahan struktur dan makna mereka.

SEBUTAN AGNATHAN DALAM CORSICA

agnathan  [æɡˈneɪθən]

APAKAH MAKSUD AGNATHAN dalam CORSICA?

Agnatha

Agnatha

Gnathostomata Agnatha adalah superclass ikan jawless dalam filum Chordata, subfylum Vertebrata, yang terdiri daripada spesies sekarang dan punah. Kumpulan ini tidak termasuk semua vertebrata dengan rahang, yang dikenali sebagai gnathostomes. Para agnathans secara keseluruhannya adalah paraphyletic, kerana kebanyakan agnathan yang pupus tergolong dalam kumpulan batang gnathostomes. Data molekul baru-baru ini, dari rRNA dan dari mtDNA serta data embriologi sangat menyokong hipotesis bahawa hidup agnathans, cyclostomes, adalah monophyletik. Agnathan fosil tertua muncul di Kemboja, dan dua kumpulan masih hidup hari ini: lampreys dan hagfish, yang terdiri daripada kira-kira 120 spesies. Hagfish dianggap anggota Vertebrata subfilum, kerana kedua-duanya kehilangan vertebra; sebelum peristiwa ini disimpulkan dari data molekul dan perkembangan, kumpulan Craniata dicipta oleh Linnaeus untuk merujuk hagfish plus vertebrata. Selain ketiadaan rahang, agnathan moden dicirikan oleh ketiadaan sirip berpasangan; kehadiran notochord dalam larva dan dewasa; dan tujuh atau lebih kantung insang yang dipasangkan. Lampreys mempunyai mata pineal sensitif yang ringan.

Gnathostomata Agnatha is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present and extinct species. The group excludes all vertebrates with jaws, known as gnathostomes. The agnathans as a whole are paraphyletic, because most extinct agnathans belong to the stem group of gnathostomes. Recent molecular data, both from rRNA and from mtDNA as well as embryological data strongly supports the hypothesis that living agnathans, the cyclostomes, are monophyletic. The oldest fossil agnathans appeared in the Cambrian, and two groups still survive today: the lampreys and the hagfish, comprising about 120 species in total. Hagfish are considered members of the subphylum Vertebrata, because they secondarily lost vertebrae; before this event was inferred from molecular and developmental data, the group Craniata was created by Linnaeus to reference hagfish plus vertebrates. In addition to the absence of jaws, modern agnathans are characterised by absence of paired fins; the presence of a notochord both in larvae and adults; and seven or more paired gill pouches. Lampreys have a light sensitive pineal eye.

Definisi agnathan dalam kamus Corsica

Takrifan agnathan dalam kamus adalah sebarang vertebrata akuatik seperti belut akuatik Agnatha superclass, yang merangkumi lampreys dan hagfishes.

TERJEMAHAN AGNATHAN

Cari terjemahan agnathan kepada 25 bahasa dengan penterjemah Corsica pelbagai bahasa kami.

Terjemahan agnathan dari Corsica ke bahasa lain yang dibentangkan dalam bahagian ini telah diperolehi menerusi terjemahan statistik automatik; di mana unit terjemahan penting adalah perkataan «agnathan» dalam Corsica.

• Penterjemah Corsica - Cina: agnathan
• Penterjemah Corsica - Czech: agnathan
• Corsica: agnathan
• Penterjemah Corsica - Hindi: agnathan
• Penterjemah Corsica - Amhara: agnathan
• Penterjemah Corsica - Rusia: agnathan
• Penterjemah Corsica - Punjabi: agnathan
• Penterjemah Corsica - Basque: agnathan
• Penterjemah Corsica - Frisia: agnathe
• Penterjemah Corsica - Melayu: Agnathan
• Penterjemah Corsica - Chichewa: agnathan
• Penterjemah Corsica - Jepun: 無顎類
• Penterjemah Corsica - Kreol Haiti: agnathan
• Penterjemah Corsica - Jerman: Agnathan
• Penterjemah Corsica - Vietnam: agnathan
• Penterjemah Corsica - Tagalog: agnathan
• Penterjemah Corsica - Marathi: अग्निनाथ
• Penterjemah Corsica - Turki: agnathan
• Penterjemah Corsica - Itali: agnathan
• Penterjemah Corsica - Poland: agnathan
• Penterjemah Corsica - Ukraine: agnathan
• Penterjemah Corsica - Romania: agnathan
• Penterjemah Corsica - Cina: agnathan
• Penterjemah Corsica - Afrikaans: agnathan
• Penterjemah Corsica - Swahili: agnathan
• Penterjemah Corsica - Parsi: agnathan

CORSICA BUKU YANG BERKAIT DENGAN «AGNATHAN»

Ketahui penggunaan agnathan dalam pilihan bibliografi berikut. Buku yang berkait dengan agnathan dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.

Vertebrate Endocrinology

Pancreas, endocrine, 463e471 Pancreastatin (Pst), effect on insulin secretion, 468 Pancreatic B cells in agnathan fishes, 490 in amphibians, 491f in birds, 492f Pancreatic cells colocalization of hormones in non-mammals, 493t types in ...

David O. Norris, James A. Carr, 2013

Comparative Psychology: Evolution and Development of ...

A cladistic analysis of living (hagfish and lampreys) and extinct (ostracoderms) agnathan fish based on fiftysix morphological characters suggests that these are the most primitive vertebrates (Forey & Janvier, 1993). Two main conclusions ...

Mauricio R. Papini, 2011

Major Events in Early Vertebrate Evolution

All but one of the phylogenetic trees of the seven separate genes analysed for agnathan relationships resulted in a monophyletic Cyclostomata (Table 8.3). In three genes, the bootstrap support for this grouping of lamprey and hagfish was ...

Per Erik Ahlberg, 2002

Ontogeny and Phylogeny of the Vertebrate Heart

A coronary circulation has never been observed in any agnathan species (Figs. 4.4 and 4.5). Their ventricles are composed of entirely spongy myocardium. The agnathan heart is strikingly analogous to the embryonic vertebrate heart.

David Sedmera, Tobias Wang, 2012

Evolutionary Developmental Biology

16.1 Proposed transformations of the first of the serial gill arches of a jawless agnathan (A) into jaws in gnathostomes (B), which are then braced by the skeleton of the second gill arch (C). Modified from du Brul (1964). element with it.

Brian K. Hall, 1999

Hormones and Reproduction of Vertebrates

Reproduction. in. Agnathan. Fishes: Lampreys. and. Hagfishes. hormone; FSH-R, follicle-stimulating hormone receptor; TSH-R, thyroid stimulating hormone receptor;. Chapter. 10. Stacia A. Sower* and Hiroshi Kawauchiy SUMMARY This  ...

David O. Norris, Kristin H. Lopez, 2010

Osmotic and Ionic Regulation: Cells and Animals

More work on these interesting agnathan fishes is needed. III. LAMPREYS The earliest ... marine and anadromous suggests that members of this agnathan group were the first vertebrates to enter freshwater. Thus, study of extant lampreys can ...

David H. Evans, 2008

Advances in Immunology

Nagawa, F., Kishishita, N., Shimizu, K., Hirose, S., Miyoshi, M., Nezu, J., et al. ( 2007). Antigen-receptor genes of the agnathan lamprey are assembled by a process involving copy choice. Nature Immunology, 8, 206–213. Nonaka, M., & Kimura ...

Frederick W. Alt, 2014

The Biology of Hagfishes

Nature, 368, 591. Schaeffer, B. and Thomson, K.S. (1980) Reflections on the agnathan-gnathostome relationship, in Aspects of Vertebrate History (ed. L.I. Jacobs), Museum of Northern Arizona, Flagstaff, pp. 19-33. Schultze, H-P. and Bardack, ...

Jørgen Mørup Jørgensen, 1998

The Late Devonian Mass Extinction: The Frasnian/Famennian Crisis

The Frasnian/Famennian Crisis George R. McGhee. 10. GIV. M. DEV. FRA. FAM. LATE DEVONIAN 380 370 Ma Figure 4.17. Diversity of subclasses of agnathan ( jawless) fishes in the later half of the Devonian Period. (Data from Halstead ...

George R. McGhee, 1996

BARANGAN BERITA YANG TERMASUK TERMA «AGNATHAN»

Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah agnathan digunakan dalam konteks perkara berita berikut.

Fossil evidence supports developmental model for the origin of the jaw

... event for the evolutionary origin of the diplorhiny (nasal sacs with individual externalized nostrils) at the agnathan-gnathostome transition. «Phys.Org, Nov 12»

Origins of the neural crest

The hagfish are a type of agnathan, jawless fish that include the lamprey. Unlike the lamprey, however, they do not form vertebrae, and so are ... «Ars Technica, Mac 07»