(a.) Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology.
Example Sentences:
(1) The geographic location of leptospirosis presents a pattern which closely parallels the distribution of Paleozoic bedrock.
(2) In general, the small subunit nuclear sequences appear to be best for elucidating Precambrian divergences, the large subunit nuclear sequences for Paleozoic and Mesozoic divergences, and the organellar sequences of both subunits for Cenozoic divergences.
(3) Recent work on Silurian, Devonian and Carboniferous terrestrial assemblages has provided plausible evidence for all major groups of extant fungi in the Paleozoic.
(4) Of the suborders present in the Paleozoic, seven are morphologically relatively simple, slowly evolving, and continued into Mesozoic and Cenozoic times to become the ancestoral lineages from which evolved several additional post-Paleozoic suborders.
(5) Key events in fungal macroevolution thus probably took place in the early Paleozoic or the late Precambrian, and the likelihood of finding definitive fossil evidence for them is small.
(6) The approximately 300 million years that make up Paleozoic time saw the evolution of eight of the fifteen recognized suborders of Foraminifera.
(7) The preliminary implication of these observations is that the mechanism of physiological color change involving MCH and its melanophore receptors evolved near the end of the Paleozoic or during the early Mesozoic, just before or early in the evolution of neopterygian (holostean and teleostean) fishes.
(8) Their early representatives may have given rise to three and eventually four post-Paleozoic suborders.
(9) The widespread late Paleozoic condition of seasonal drought favored progressive developments which, with the attainment of a reptilian stage, had the happy accidental result of the vertebrate conquest of the land, a conquest aided by the emergence of the insects as a basic food supply.
(10) A number of suborders in the Paleozoic have similar, supposedly independent, early evolutionary patterns with the following series of morphological steps: (1) single chambers with or without apertures depending on the amount of wall cement; (2) groups of chambers that appear to be buds or aggregations of individuals rather than true chambers; (3) a proloculus followed by a tubular second chamber that is first erect and gradually evolves into enrolled free-living individuals; (4) development of constrictions in the tubular chamber; and finally (5) evolution of true chambers.
(11) Fusulinines became extinct at the end of the Paleozoic.
(12) In Ontario, bedrock composed of limestone and dolomite formed in the Paleozoic era appears to be a reliable ecological marker for Leptospira pomona infection.
(13) In contrast, an eighth Paleozoic suborder, the Fusulinina, was an abundant, ecologically dominant group that evolved from simple to highly specialized forms and had a history of rapid evolution with diverse lineages.
(14) Antibodies to L. hardjo and L. sejroe occur in many bovine sera from a predominantly Precambrian area where Paleozoic outliers are numerous.
(15) A marked increase in atmospheric oxygen level near the beginning of the Paleozoic would eliminate oxygen-collagen priorities simultaneously and on a world-wide basis in all metazoan stocks providing evolutionary pressure for enlarged musculatures and associated "hard parts."
Reptile
Definition:
(a.) Creeping; moving on the belly, or by means of small and short legs.
(a.) Hence: Groveling; low; vulgar; as, a reptile race or crew; reptile vices.
(n.) An animal that crawls, or moves on its belly, as snakes,, or by means of small, short legs, as lizards, and the like.
(n.) One of the Reptilia, or one of the Amphibia.
(n.) A groveling or very mean person.
Example Sentences:
(1) We have labelled single, primary auditory neurones in three reptile and one bird species.
(2) The microchromosomes are like those found in certain other primitive fishes as well as in reptiles and birds.
(3) Its adaptive value, chiefly in reptiles, remains an open question.
(4) Since it is known that fever is beneficial in infected reptiles, our experiments were viewed as an initial step in the investigation of a similar potentially beneficial effect in mammals.2.
(5) The distribution of serotonin-immunoreactive cells in the lung of 4 species of reptiles was investigated.
(6) The endocrine pancreas of this reptile is located throughout the spleen side of the organ and consists of islet-like structures, small groups of two to five cells, and single scattered endocrine cells.
(7) As in the case of other reptiles, particularly the alligator, a limited range of peptide-storing cells was found in the gut of the crocodile.
(8) 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.
(9) Among birds 84.2% of the isolates were S. typhimurium, among mammals 62.6%, among reptiles only 26.8%.
(10) The evolution of enamel structure is dealt with here on the basis of fossil reptiles and mammals ranging from the Triassic to the present.
(11) An immunocytochemical method, using glutaraldehyde fixation and an antiserum developed against a GABA-glutaraldehyde protein conjugate, permitted direct visualization of GABAergic structures in the brain of a reptile (chameleon).
(12) Rodioimmunoassayable somatostatin (SRIF) was found in acid ethanol extracts from various parts of the gastro-entero-pancreatic (GEP) endocrine system in reptiles, amphibians, teleost bony fish, cartilaginous fish, and jawless fish, as well as in a deuterostomian invertebrate, the tunicate, Ciona intestinalis.
(13) The ultrastructure of the nasal glands of the roadrunner injected with salt and of quail drinking 200 mM NaCl was similar to that of salt glands in reptiles and the fresh-water acclimated duck.
(14) A tabulation of previously documented ovarian neoplasia in reptiles and a comparison of this cancer to those occurring in women will be discussed.
(15) the bowel of reptiles, has no changed for some hundred million years.
(16) On the basis of the amino acid sequence of cytochromes c in different species the degree of clustering and the degree of the chain asymmetry of the corresponding structural genes of DNA was found to have a general tendency towards an increase in the following order: invertebrates, fishes, amphibians, reptiles, birds, mammals.
(17) A tendency for an increase in the index of clustering of DNA was revealed in the sequence: invertebrates, fishes, amphibians, reptiles, birds, mammals.
(18) The anti-G beta, gamma antibodies recognized a 35-36-kDa protein in brain of vertebrates such as mammals (rat), avians (pigeon), amphibians (frog), fish (trout), and reptiles (turtle) but not in the invertebrates such as molluscs (snail) and insects (locust).
(19) These results reveal that some species of fishes, amphibians and mammals can act as the second intermediate host and that some species of reptiles, birds and mammals can act as a paratenic host.
(20) However, in many of these animals, including reptiles, the physiological functions and importance of the system remain unclear.