What's the difference between amphibian and anura?
Amphibian
Definition:
(a.) Of or pertaining to the Amphibia; as, amphibian reptiles.
(n.) One of the Amphibia.
Example Sentences:
(1) Measurements of acetylcholine-induced single-channel conductance and null potentials at the amphibian motor end-plate in solutions containing Na, K, Li and Cs ions (Gage & Van Helden, 1979; J. Physiol.
(2) Representative specimens from two classes of Vertebrata Sub-Phyllum, Bufo paracnemis (amphibian) and Gallus domesticus (avian) were made anemic by phenylhydrazine treatment.
(3) The auditory function of the sacculus in amphibians is confirmed and special attention is paid to functional heterogeneity of the receptor epithelium in the saccular maculae.
(4) Both tympanic and nontympanic pathways of sound reception are utilized by anuran amphibians.
(5) Recent interest has focused on endogenous cardiac glycosides, some progesterone derivatives (pregnanes) and the amphibian bufodienolides.
(6) The neotenic urodelan amphibian species model represents actually the only model in which the coexistence of larval (or neonatal) and adult heavy chains is maintained throughout life in adults.
(7) In terms of their chemical structures as well as the potency and efficacy with which they alter acinar cell function, the amphibian peptides plus CCK-OP can be grouped into three pairs: caerulein with CCK-OP, bombesin with litorin, and physalaemin with eledoisin.
(8) The same membrane specialization was noted in a previous study of amphibian myoneural junctions, and it was proposed then that the granular elements represent ACh receptor molecules.
(9) In relation to the human class I enzyme, the amphibian protein has residue identities exactly halfway (68%) between those for the corresponding avian enzyme (74%) and the human class III enzyme (62%), suggesting an origin of the alcohol dehydrogenase classes very early in or close to the evolution of the vertebrate line.
(10) The four hosts (Mollusc -- Crustacean -- Odonat -- Amphibian) are obligatory in the life cycle for it is impossible to infect the Insects directly with the cecariae or the frog (tadpoles as well as adults) with the mesocercariae.
(11) Sections of Rat and Amphibian adrenocortical tissue fixed in a mixture of 1% formaldehyde and 0.25% glutaraldehyde, are incubated in a medium containing namely a 3 beta-hydroxysteroid (substrate), NAD, potassium ferricyanide (hydrogen acceptor) and copper sulfate.
(12) The results confirm observations that different amphibian species react in different ways to activating chemicals.
(13) The role of mitochondria has not yet been conclusively established, but is suggested by several lines of evidence, particularly in amphibian hearts.
(14) The subcellular responses of amphibian adrenocorticotropic (ACTH) and thyrotropic (TSH) pituitary cells to the in vivo administration of ovine corticotropin-releasing factor was investigated.
(15) Using material on the evolution of the fundus of the oral cavity in amphibians, four principles were established for the origin of heterochronia: efficiency of ontogenesis; adaptability of an earlier (than in ancestors) beginning for functioning of traits; loss of the adaptive significance of a trait at a previous stage, but a preservation of it at a subsequent stage; and, a prolongation of the adaptive significance of a trait at later stages.
(16) While it is believed that the effect of ethanol on human renal water homeostasis is indirect, amphibian membrane experiments have demonstrated direct effects albeit at high concentrations.
(17) In the tetraploid amphibian Odontophrynus americanus the selective precipitation of vitellogenin by Mg2+ from plasma treated with ethylene diaminetetraacetic acid (EDTA) or ethylene bis (oxyethylenenitrilo)-tetraacetic acid (EGTA) is a pH-dependent phenomenon.
(18) The early amphibian embryo provides an attractive model for the in vivo analysis of cell interactions with extracellular matrix components.
(19) In this manner, the first terminal structures of three non-mammalian alcohol dehydrogenases were determined, demonstrating the presence of N-terminal acetylation in these piscine, amphibian, and avian enzymes.
(20) There is clearly an MHC in amphibians and birds with many characteristics like the MHC of mammals (a single genetic region encoding polymorphic class I and class II molecules) and evidence for polymorphic class I and class II molecules in reptiles.
Anura
Definition:
(n. pl.) One of the orders of amphibians characterized by the absence of a tail, as the frogs and toads.
Example Sentences:
(1) After the treatment in toto of the embryos from various species of Anura by cAMP, the number of primordial germ cells (PGC) in genital ridges is strongly reduced; the most part of the PGC are found in the endoderm.
(2) Odontophyrynus americanus (Amphibia, Anura) genomic DNA from diploid and tetraploid specimens was treated with restriction enzymes sensitive to cytosine and adenine methylation (5 meC and 6 meA).
(3) However, after a thorough study, some differences in distribution and density of degeneration suggest the idea that Ranid's visual system is not entirely representative among the Anura.
(4) Comparisons with retinal and tectal cells in carp, goldfish, pike, trout and in the Anura were made.
(5) In contrast to amphibians belonging to the orders Urodela and Anura, virtually no data exist on the respiratory physiology of the more primitive Apoda.
(6) The retinofugal pathways of an "archaic" Anura Discogossus pictus were examinated with Fink-Heimer method following ablation of the retina and after survival times of 5--105 days at 14 degrees C. A description of the diencephalic and mensencephalic architectonics has been done in order to replace the visual system into the general pattern.
(7) The type of chromosomal arrangement within the elongated sperm nuclei of Anura is discussed on the basis of the distribution patterns obtained.
(8) Analysis of the kinetics of carbon monoxide binding by hemoglobin from the tadpole of Xenopus laevis supports that model and suggests an explanation for the absence of an alkaline Bohr effect in many aquatic Anura and Urodela.
(9) With the exception of Anura, strong immunoreactivity was seen in the large ganglion, amacrine cells and horizontal cells of the retina in all of the other species.
(10) The pattern of glycosyltransferase activities is similar to the pattern of incorporation of the two saccharides into proteins, indicating these enzymes as important control points for glycosylation in Anurae.
(11) The position of specific constitutive heterochromatic chromosome regions within the elongated sperm nuclei of eight species of Anura was examined with Q- and C-banding.
(12) The retino-tectai projections of the Anura Discoglossus pictus were examined on seventeen adult specimens unilaterally enucleated.
(13) The different amino acid composition indicated a protein heterogeneity which could be connected with the tissue incompatibility of the transplantations when these last were effected between the orders Urodela and Anura.
(14) Anura Dissanayake, a spokesman for the Democratic National Alliance, which is led by Fonseka, claimed the charges were politically motivated.
(15) The retinotectal projection in anura is mainly crossed, although a small proportion of optic axons projects to the ipsilateral tectum.
(16) Avoidance, which is apparently mediated by a separate system, much as in Anura, is facilitated.
(17) This work points out the existence of a direct ipsilateral retino-tectal pathway in Anura.
(18) Many remarkable similarities to the frontal organ of other Amphibia Anura are observed.
(19) The karyotypes of 14 species of Anura from 9 genera of the suborders Amphicoela, Aglossa, Opisthocoela and Anomocoela were analysed with various banding techniques and conventional cytogenetic methods.
(20) The process of labyrinth determination has been studied in amphibians (three Urodela and seven Anura species) using homoplastic transplantation of ear ectoderm, containing labyrinth material onto the abdominal wall of embryos of the same stage of development.