Animals

These animals should eventually prove to be valuable sources of proteins for human therapy.
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Animals are characteristically multicellular heterotrophs whose cells lack cell walls. At some point during their lives, animals are capable of movement.
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Animals are adapted to handle long, cold winters and to breed and raise young quickly in the summer. Animals such as mammals and birds also have additional insulation from fat. Many animals hibernate during the winter because food is not abundant.
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Animals initially lived only in water and reproduced by external fertilization in the water.
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Animals that are true carnivores
A true carnivore is an animal that subsists primarily on a diet consisting only of meat.
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Animals in utero can be affected by hormones produced by nearby siblings of the opposite sex. The placement of an animal, such as a mouse in a litter, may have a long-term effect on physiology or behavior.
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Animals with three segmented body regions, a jointed exoskeleton, blood in body cavities, and a complex nervous system. Includes spiders and insects.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Animals
Increased resistance, productivity, hardiness, and feed efficiency
Better yields of meat, eggs, and milk
Improved animal health and diagnostic methods ...
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Animals store extra carbohydrates as glycogen in the liver and muscles. Between meals, the liver breaks down glycogen to glucose in order to keep the blood glucose concentration stable.
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animals Members of the kingdom Animalia, which consists of heterotrophic, eukaryotic, and multicellular organisms.
anisogametes Outwardly dissimilar male and female gametes. Anisogamy is the condition of having dissimilar male and female gametes.
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Animals start appearing prior to the Cambrian, about 600 million years ago. The first animals dating from just before the Cambrian were found in rocks near Adelaide, Australia.
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: Animals which have been bred to be genetically identical except for a single gene locus.
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In animals, a physiological state that conserves energy by slowing down the heart and respiratory systems.
totipotency
The ability of embryonic cells to retain the potential to form all parts of the animal.
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Group of animals or plants presumably related by descent from common ancestors and phenotypically similar in most traits. Cf. breeding line.
Related Terms: Phenotype ...
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Meiofauna. Animals whose shortest dimension is less than 0.5 mm but greater than or equal to 0.1 mm
Megaplankton. Planktonic organisms that are greater than or equal to 2000 micrometers in size ...
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omnivores: animals that consume both plants and animals.
oocytes: the developed oogonia in a female after the age of puberty.
oogonia: primitive egg cells that accumulate in the ovaries before a female is born.
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capitulum
In animals it is the rounded rib head that articulates with the centrum of the vertebra. In plants it is a head of flowers.
capsid
the protein shell that encloses the viral genome; rod-shaped, polyhedral, or more completely shaped.
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protozoa - tiny animals; most feed on microorganisms
yeast - eukaryotic organisms larger than most bacteria, commonly divides by budding ...
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Many naturally occurring cancers of vertebrate animals are caused by retroviruses. Reverse genetics.
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That part of the fore limb below the forearm or wrist in man and monkeys, and the corresponding part in many other animals; manus; paw. See Manus.
2.
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The fundamental life processes of plants and animals depend on a variety of chemical reactions that occur in specialized areas of the organism's cells.
Genetics
2. Mutation and sexual reproduction lead to genetic variation in a population.
3.
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Zoology is the discipline which involves the study of animals, which includes the physiology of animals is studied under various fields including anatomy and embryology.
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Allen's Rule: The warmer the climate the longer the appendages (ears, legs, wings) of warm blooded animals in comparison with closely related taxa from colder climes.
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deuterostomes - broad classification of triploblastic animals including echinoderms and chordates that tend to share certain embryological traits; among these the formation of the "mouth second" (hence the name) during gastrulation, ...
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Two successive nuclear divisions (with corresponding cell divisions) that produce haploid gametes (in animals) or haploid sexual spores (in plants and fungi) having one-half of the genetic material of the original cell.
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region in echinoderm animals in which are located the ambulacral tube feet for locomotion
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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This classification includes animals, plants, and fungi.
These cells tend to be larger than prokaryotes, and have developed specialized packaging and transport mechanisms that may be necessary to support their larger size.
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Taxon
(pl. taxa) A group of animals classified as a named set, supposedly of the same type.
Tectonics
The process by which the earth's surface has attained its present structure.
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Predator: An animal that attacks and feeds on other animals, normally killing several individuals during its life cycle.
Pronotum: The upper, often shield-like, hardened body-wall plate, located just behind the head of an insect.
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gossypol. A substance poisonous to many animals, produced by numerous small glands in most cotton varieties.
graft union. Place where the rootstock joins the scion or top part of a grafted tree or vine.
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[Gr. zoon - animal; planktos - wandering]. Minute aquatic animals that drift freely in the plankton, feeding mainly on phytoplankton (plant-like organisms) and having no locomotory structures.
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agency responsible for regulation of biotechnology products in plants and animals. The major laws under which the agency has regulatory powers include the Federal Plant Pest Act (PPA), the Federal Seed Act, and the Plant Variety Act (PVA).
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Hermaphroditism having organs of both sexes in one body (this term is used primarily with animals - "monoecious" is used with plants) ...
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antibodies - a molecule produced by animals in response to antigen which has the particular property of combining specifically with the antigen which induced its formation ...
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Haploid: A single set of chromosomes (half the full set of genetic material), present in the egg and sperm cells o f animals and in the egg and pollen cells of plants. Human beings have 23 chromosomes in their sex cells. Compare to diploid.
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For example, a laser beam can be used to focus on and kill one cell in C. elegans. In other experimental animals, a controllable promoter may be used to selectively express a toxin gene in a small number of cells.
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Haploid: A single set of chromosomes (half the full set of genetic material), present in the egg and sperm cells of animals and in the egg and pollen cells of plants. Human beings have 23 chromosomes in their reproductive cells. Compare diploid.
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Lampbrush chromosomes are thought to assist in fulfilling the high demand for transcripts during amphibian oogenesis.
Lampbrush chromosomes are also present during development of other animals, but have been most studied in amphibians.
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Several of the models develop features of the disease including amyloid pathology, cholinergic deficits, neurodegeneration and cognitive impairment. Progress in the characterization and use of these model animals is discussed.
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