What's the difference between animal and metazoa?

Animal


Definition:

  • (n.) An organized living being endowed with sensation and the power of voluntary motion, and also characterized by taking its food into an internal cavity or stomach for digestion; by giving carbonic acid to the air and taking oxygen in the process of respiration; and by increasing in motive power or active aggressive force with progress to maturity.
  • (n.) One of the lower animals; a brute or beast, as distinguished from man; as, men and animals.
  • (a.) Of or relating to animals; as, animal functions.
  • (a.) Pertaining to the merely sentient part of a creature, as distinguished from the intellectual, rational, or spiritual part; as, the animal passions or appetites.
  • (a.) Consisting of the flesh of animals; as, animal food.

Example Sentences:

  • (1) These variants may serve as useful gene markers in alcohol research involving animal model studies with inbred strains in mice.
  • (2) This trend appeared to reverse itself in the low dose animals after 3 hr, whereas in the high dose group, cardiac output continued to decline.
  • (3) It is supposed that delta-sleep peptide along with other oligopeptides is one of the factors determining individual animal resistance to emotional stress, which is supported by significant delta-sleep peptide increase in hypothalamus in stable rats.
  • (4) The animals were sacrificed every 12 hr from D12.0 through D17.0.
  • (5) Nutritionally rehabilitated animals had similar numbers of nucleoli to control rats.
  • (6) After two weeks all animals were killed and autopsies of the animals were performed.
  • (7) Spectrophotometric determination of the sulfhydryl content in the animal tissue before (control) and after using 6,6'-Dithiodinicotinic acid is applied.
  • (8) When chimeric animals were subjected to a lethal challenge of endotoxin, their response was markedly altered by the transferred lymphoid cells.
  • (9) Increased dietary protein intake led to increased MDA per nephron, increased urinary excretion of MDA, and increased MDA per milligram protein in subtotally nephrectomized animals, and markedly increased the glutathione redox ratio.
  • (10) Measurement of the intraspinal monoamine level revealed a decrease in the intraspinal norepinephrine level in the treated animals.
  • (11) Pretraining consumption did not predict (among animals) post-training consumption.
  • (12) A group I subset (six animals), for which predominant cultivable microbiota was described, had a mean GI of 2.4.
  • (13) As the percentage of rabbit feed is very small compared to the bulk of animal feeds, there is a fair chance that rabbit feed will be contaminated with constituents (additives) of batches previously prepared for other animals.
  • (14) Using mini-pigs with an indwelling vascular catheter, the pharmacokinetics of chloramphenicol were investigated in healthy and liver-damaged animals.
  • (15) Tests showed the cells survive and function normally in animals and reverse movement problems caused by Parkinson's in monkeys.
  • (16) Neuroleptics (chlorpromazine, reserpine and haloperidol) had not such an influence, though they somewhat increased the general activity of the animals.
  • (17) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
  • (18) Since 1987, it has become possible to obtain immature ova from the living animal and to let them mature, fertilize and develop into embryos capable of transplantation outside the body.
  • (19) In the present investigation we monitored the incorporation of [14C] from [U-14C]glucose into various rat brain glycolytic intermediates of conscious and pentobarbital-anesthetized animals.
  • (20) In animal experiments pharmacological properties of the low molecular weight heparin derivative CY 216 were determined.

Metazoa


Definition:

  • (n. pl.) Those animals in which the protoplasmic mass, constituting the egg, is converted into a multitude of cells, which are metamorphosed into the tissues of the body. A central cavity is commonly developed, and the cells around it are at first arranged in two layers, -- the ectoderm and endoderm. The group comprises nearly all animals except the Protozoa.

Example Sentences:

  • (1) Phyla as diverse as insects, birds, and mammals possess distinct HRAS and KRAS sequences, suggesting that these genes are essential to metazoa.
  • (2) The unique structure of these cilia has systematic and phylogenetic significance for the Acoela, and it is argued that ultrastructural characters in general, including characters of organelles, can be validly applied to the phylogeny and systematics of the Metazoa.
  • (3) In Metazoa single receptory flagellar cells are differentiated; they realize conservatively some receptive molecules that are already prepared by their ancessors--Eukaryota.
  • (4) Together with previous results that showed the existence of a nonfibrillar collagen in the same species, these data demonstrate that at least two collagen gene families are represented in the most primitive metazoa.
  • (5) The origin of metazoa implies the passage from an eukarote protozoan to a protozygote ancestor of a metazoan zygote.
  • (6) RNA synthesis and processing in A. nidulans mitochondria therefore resembles the events occurring in metazoa rather than yeast.
  • (7) Comparison of the sequences obtained from the different species indicate that the metazoan lineages all appear to have arisen at approximately the same time and significantly later than the time of divergence of yeast from the common ancestor of the Metazoa.
  • (8) This is the first report in a nutritional role of peptides in invertebrate metazoa.
  • (9) In these phylogenies the Ciliophora diverged from the eukaryotic line of descent as a loose phylogenetic grouping during a radiative period that gave rise to the Fungi, the Plantae and the Metazoa.
  • (10) Analysis of messenger RNA splicing in yeast and in metazoa has led to the identification of an RNA molecule in a lariat conformation.
  • (11) These findings support the view that Myxosporidia are Metazoa and raise the problem of their origin.
  • (12) A variety of microorganisms and metazoa was observed, including a baculovirus, gram-negative bacteria, rickettsia-like organisms, amoebae, trypanosomatid flagellates, cephaline gregarines, and microsporidia.
  • (13) Organisms with defective or with no lymphocytic function are able to live for a certain time while metazoa cannot develop and exist without cells capable of phagocytosis.
  • (14) Polyploidy--the doubling of chromosome sets of cells caused by a stop of mitosis at different levels of the mitotic cycle--is a phenomenon widely observed in plants, protozoa, metazoa, and animals.
  • (15) In Metazoa two types of locomotion take place according to the function of regulatory genes: initial flagellar and muscular definitive apparatus.
  • (16) The presence of spasmins in other Protozoa and in some Metazoa was also investigated.
  • (17) At this stage, the swimming Metazoa of the thermocline could adapt to a benthic environment on the shelves by developing exoskeletons.
  • (18) These analyses indicate that (i) the Metazoa is a monophyletic taxon; (ii) the Deuterostomia is a monophyletic taxon; (iii) the Annelida-Mollusca lineage is the sister group of an arthropod subgroup; and (iv) the last common ancestor of the Annelida-Mollusca lineage is most parsimoniously derived from a segmented, hemocoelic ancestor with an open circulatory system.
  • (19) Tubulin and dinein with ATPh-ase activity are included in the flagella composition of LSS in Eukaryota, actin and miozin--with a high ATPh-ase activity--in composition of LSS myofilaments in ameboid Eukaryota and locomotor musculature in Metazoa.
  • (20) Comparative evidence on the lack of three important organelles (flagella, Golgi-complex, mitochondria) in cells and organisms at the cellular level of organization has been summarized for all the four eukaryotic kingdoms--Protista, Fungi, Plantae and Animalia (Metazoa).

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