Anagram & Information om | Engelska ordet AMNIOTE

Exempel på hur man kan använda AMNIOTE i en mening

• Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales.
• An anapsid is an amniote whose skull lacks one or more skull openings (fenestra, or fossae) near the temples.
• ABO blood group system – abscisic acid – absorption spectrum – abyssal zone – acetylcholine – acetyl-CoA – acid – acid precipitation – acoelomate – acrosome – actin – action potential – active site – adaptive radiation – address-message concept – adenosine 5'-triphosphate – adenylyl cyclase – adrenal gland – adrenodoxin – aerobic organism – age structure – agonist – AIDS – albumin – aldehydes – aldosterone – algae – allantois – allele – allometry – allopatric speciation – allosteric binding site – allosteric effector – allosteric enzyme – allosteric site – allozyme – alpha helix – amino acid – aminoacyl tRNA synthetase – amino group – amniocentesis – amniote – amphipathic molecule – anabolism – anaerobic organism – anaerobic respiration – androgen – anemia – aneuploidy – angiosperm – anther – anthrax – antibiotic – antibody – anticodon – antidiuretic hormone – antigen – apical dominance – apical meristem – apolipoprotein – apoplast – apoptosis – aquaporin – Archaea – archegonium – arteriosclerosis – artery – arthritis – ascus – asexual reproduction – atomic number – ATP – ATP synthase – atrioventricular valve – atrium – autoimmune disease – autonomic nervous system – autosome – auxin – axillary bud – axon.
• With more than 425 species, it represents the world's most species-rich amniote tetrapod genus, although many of these have been proposed to be moved to other genera, in which case only about 45 Anolis species remain.
• Romeriscus is a genus from the early Pennsylvanian (Late Carboniferous) initially described as the oldest known amniote, but this is because limnoscelids were, at that time, considered amniotes by some authors.
• Named after the allantois (an amniote embryonic excretory organ in which it concentrates during development in most mammals except humans and other hominids), it is a product of oxidation of uric acid by purine catabolism.
• A third is the repurposing of two of the three bones in the amniote jaw to become the malleus and incus of the mammalian ear, leaving the mammalian jaw with just one hinge.
• More recently they have been reclassified either as non-amniote reptiliomorphs lying just outside the clade Amniota, or as early-diverging synapsids (members of the amniote group containing mammals and their extinct relatives).
• Edaphosaurus is important as one of the earliest-known, large, plant-eating (herbivorous), amniote tetrapods (four-legged land-living vertebrates).
• Some vertebrates that are both amniote or anamniote, including urodele amphibians, cartilaginous fish, birds and reptiles, undergo physiological polyspermy because of the internal fertilization of their yolky eggs.
• Cell fate studies have revealed that also the overall temporal sequence in which groups of endomesodermal cells internalize along the frog blastopore and amniote primitive streak are surprisingly similar: the first cells that involute around the amphibian blastopore lip in the organizer region, and that immigrate through Hensen's node, contribute to foregut endoderm and prechordal plate.
• Initially described as a basal ornithischian dinosaur, subsequently reclassified as a member of the clade Archosauriformes of uncertain phylogenetic placement and later, taking into account the similarity of its teeth to the teeth of traversodontid cynodonts such as Dadadon (shared presence of teeth with sub-triangular crowns, enlarged denticles, and thecodont tooth implantation), as an amniote of uncertain affinities (though based on dissimilarities in gross morphology and geographic separation it is still more likely that the taxon is indeed an archosauriform rather than a traversodontid).
• As a result, most paleontologists since the original description place the genus within the group Reptiliomorpha, among other amniote relatives such as diadectomorphs and seymouriamorphs.
• In phylogenetic parlance it would have been a stem amniote, close to, but outside the crown group Amniota (the group consisting of the last common ancestor of synapsids and sauropsids and all its descendants).
• Gauthier's corpus contributed the foundational phylogenetic studies of Archosauria and Lepidosauria, two major amniote clades; and he was the primary author of the foundational and still widely cited phylogenetic study of Amniota as a whole.
• In amniote embryonic development, the epiblast (also known as the primitive ectoderm) is one of two distinct cell layers arising from the inner cell mass in the mammalian blastocyst, or from the blastula in reptiles and birds, the other layer is the hypoblast.
• In amniote embryology, the hypoblast is one of two distinct layers arising from the inner cell mass in the mammalian blastocyst, or from the blastodisc in reptiles and birds.
• Within a few million years two important amniote lineages became distinct: the synapsid ancestors of mammals, and the sauropsids ancestors of lizards, snakes, crocodilians, dinosaurs and birds.
• Although similar evidence is missing for mammals, the phylogenetic position of orthohepadnaviruses as a sister clade to avihepadnaviruses suggests a presence of the virus in the amniote ancestor and a subsequent coevolution with both birds and mammals after their divergence (>300M years ago).
• The name "anamniote" is a back-formation word created by adding the prefix an- to the word amniote, which in turn refers to the amnion, an extraembryonic membrane present during the amniotes' embryonic development which serves as a biochemical barrier that shields the embryo from environmental fluctuations by regulating the oxygen, carbon dioxide and metabolic waste exchanges and secreting a cushioning fluid.

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