Animals are a major group of multicellular organisms, of the kingdom Animalia or Metazoa.
Animals, domestic
animals which have become adapted through breeding in captivity to a life intimately associated with man. They include animals domesticated by man to live and breed in a tame condition on farms or ranches (e.g.
Animalia is a world of animals. Pictures taken by Santiago Fernández, wild life photographer ... Right Arrow - Use it to move forwards while navigating thru Animalia ...
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Animal Cells
This schematic represents an idealized animal cell, e.g., a liver cell. The columns to the left and right of the labels contain links to discussions of the particular structures.
Intermediate filaments ...
animal pole
Imaginary point on the surface of the egg or zygote which lies in the center of the animal hemisphere, opposite to the vegetal pole.
Source: Curtis, Helena. 1968. Biology. New York, NY. Worth Publishers ...
Animals are multicellular heterotrophs whose cells lack cell walls. At some point during their lives, all animals are capable of movement, although not all animals have muscles they use for this.
Animal organs are usually composed of more than one cell type. Recall that the stomach contains all four animal tissue types: epithelium to line the stomach and secrete gastric juices; ...
Animal pole
The animal hemisphere end of the axis of an oocyte or embryo; the end opposite the vegetal pole.
The practical application of genetic analysis for development of lines of domestic animals suited to human purposes.
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Animal Cell Structure
Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.
Animal Model
An animal model is a non-human species used in medical research because it can mimic aspects of a disease found in humans. Animal models are used to obtain information about a disease and its prevention, diagnosis, and treatment.
The Animal Cell
All the tissues and organs of the body originate from a microscopic structure (the fertilized ovum), ...
Many advanced animals have muscular systems. You know you do. Did you know that your muscular system is made up of three different types of muscular tissue? You have smooth, cardiac, and voluntary muscle tissue in your body.
Animal Cell Mitosis
This animation demonstrates the stages of mitosis in an animal cell. Use the control buttons in the upper left to run the complete animation.
animal hemisphere - half of an egg or embryo that contains less yolk and/or which divides more rapidly in comparison to the vegetal hemisphere.
Animals
Increased resistance, productivity, hardiness, and feed efficiency
Better yields of meat, eggs, and milk
Improved animal health and diagnostic methods ...
Animals
Clonal derivation exists in nature in some animal species and is referred to as parthenogenesis.
Animal Structure and Function
The Digestive System
All living things require nutrients or food.
DNA Animal Viruses
Animal viruses usually do not kill the cell.
The viruses have a membranous outer envelope with spikes.
2 Animals
Speciation through hybridization and/or polyploidy has long been considered much less important in animals than in plants [[[refs.]]]. A number of reviews suggest that this view may be mistaken.
Kingdom Animalia Kingdom of organisms‚ known as "animals‚" which ingest their food
(anima = life‚ breath) ...
Animal Reservoirs
Scientists have identified more than one hundred species of pathogenic bacteria that can infect both humans and animals.
Animals cannot make their own food. They must rely on other living things, such as plants, fungi, and other animals to sustain them. Without other food sources, animals could not survive.
Animal Production and Health Commission for Asia, the Far East and the Southwest Pacific ...
Animal and plant cells have membrane proteins that permit direct cell to cell communication by opening channels between cell cytoplasms. These are called gap junctions in animal cells and plasmodesmata in plant cells.
problem 1 ...
Animals that lack a coelom (body cavity).
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animal behavior Activities animals perform during their lifetime.
animal pole The region of a fertilized egg where meiosis is completed. It contains less yolk and is more metabolically active than the opposite vegetal pole.
Animal tissue that functions mainly to bind and support other tissues, having a sparse population of cells scattered through an extracellular matrix.
conservation biology ...
An animal with both male and female sex organs.
Allogamy
Transfer of pollen (pollination) from the anther of the flower of one plant to the stigma of the flower of a genetically different plant.
An animal in the early stage of development before birth (in humans, the embryo stage is the first three months following conception).
Source : Human Genome Project Information
Endoplasmic reticulum (ER) ...
Meiofauna. Animals whose shortest dimension is less than 0.5 mm but greater than or equal to 0.1 mm ...
A laboratory animal or other organism useful for research.
Modeling
The use of statistical analysis, computer analysis, or model organisms to predict outcomes of research.
Prey: An animal that is used by other animals for food.
Primary Consumer: A heterotrophic, herbivorous organism that feeds directly on a primary producer. Urchins are a primary consumer as they feed on kelp.
Transgenic animal An animal (nearly always a mouse) into the genome of which a foreign gene has been introduced.
Congenic: Animals which have been bred to be genetically identical except for a single gene locus.
prey - an animal fed upon by a predator
proboscis - protuberance containing the mouthparts, applied to some insects, worms and mollusks
profit - an amount in excess of the cost of production ...
Group of animals or plants presumably related by descent from common ancestors and phenotypically similar in most traits. Cf. breeding line.
Related Terms:
Phenotype ...
protozoa - tiny animals; most feed on microorganisms
yeast - eukaryotic organisms larger than most bacteria, commonly divides by budding ...
TRANSGENIC - An animal (usually a mouse) or plant into which a foreign gene has been introduced in the germ line. An example: transgenic mice expressing the human receptor for poliovirus are susceptible to human polioviruses.
frugivore -- Animal which primarily eats fruit. Many bats and birds are frugivores.
generalist -- Organism which can survive under a wide variety of conditions, and does not specialize to live under any particular set of circumstances.
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.
Ethology studies animal behavior (particularly of social animals such as primates and canids), and is sometimes considered as a branch of zoology.
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.
predator. Any animal (including insects and mites) that kills other animals (prey) and feeds on them.
preemergence herbicide. Herbicide applied before emergence of weeds.
- A major food and animal feed crop, member of the grass family Poaceae. Barley is the fifth largest cultivated cereal crop in the world.
Base pair ...
An organism whose cells possess a nucleus and other membrane-bound vesicles, including all members of the protist, fungi, plant and animal kingdoms; and excluding viruses, bacteria, and blue-green algae. See Prokaryote. Evolution.
Biome: one of the largest recognizably distinct ecosystems on earth; the plant and animal communities and associated soils that are characteristic of a given regional climate type.
Animal - kingdom composed of multicellular organisms divided into two divisions: vertebrates and invertebrates, who obtain their food from external sources and reproduce sexually or asexually ...
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.
Many eukaryotes, including stressed plants, insects, deep-sea animals and kidney tubule cells, adapt to environmental variation by making or accumulating diverse inositol derivatives as ‘compatible' solutes.
The most widely known source of stem cells is human/animal embryos, prompting controversy over stem cell research based on bioethics and the view that life begins at conception.
The glucose made by plants is used by plants and animals as a source of energy. To release the energy contained in the bonds of glucose, the glucose must be converted to ATP.
Ablation experiment: An experiment designed to produce an animal deficient in one or a few cell types, in order to study cell lineage or cell function.
ptb is a gastrointestinal pathogen, it can cause fatal septicemia in stressed animals, and can be transmitted to fleas.
Endogenous retrovirus: Integrated retrovirus DNA (provirus) derived from infection of the germline of an ancestral animal.
Antibody A protein synthesized by an animal in response to the presence of a foreign substance, or antigen; often binds to the antigen, neutralizing it or marking it for destruction.
Cholesterol A waxy lipid produced by animal cells that is a major component of cell membranes. Cholesterol is also used as a building block for some hormones.
Dissections provide a way for learning about the internal and external anatomical structures of animals. For many people however, dissections can be very disturbing.
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 ...
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).
 See also: Animals, Organ, Plant, Human, Trans
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