bioturbation definition
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- Freebase(0.00 / 0 votes)Rate this definition: Bioturbation is the reworking of soils and sediments by animals or plants. Its effects include changing texture of sediments, bioirrigation and displacement of microorganisms and non-living particles.
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- biogenesis, biogeny. 1. the process by which living organisms develop from other living organisms. 2. the belief that living organisms can only develop from other living organisms. — biogenic, biogenetic, adj. — biogenetically, biogenically, adv.
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microbiology The definition of microbiology is the branch of biology that studies micro-organisms (very small organisms). The study of immune systems is an example of microbiology. the branch of biology that deals with microorganisms.
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Metabolism 1. biotransformation. 2. the sum of the physical and chemical processes by which living organized substance is built up and maintained (anabolism), and by which large molecules are broken down into smaller molecules to make energy available to the organism (catabolism).
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BASIC BIOLUMINESCENCE Bioluminescence is defined as the emission of light from a living organism that functions for its survival or propagation. It is a cold light, resulting from a specific biochemical mechanism involving chemical processes, often specific for that organism.
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- Bioconcentration is the specific bioaccumulation process by which the concentration of a chemical in an organism becomes higher than its concentration in the air or water around the organism. Although the process is the same for both natural and manmade chemicals, the term bio-concentration usually refers to chemicals foreign to the organism.
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- Biogenesis. Definition. noun. (1) The process in which life forms arise from similar life forms. (2) It asserts that living things can only be produced by another living thing, and not by a non-living thing.
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Are Human Beings Alien to Planet Earth? Lithopanspermia: Rocks expelled from the surface of an inhabited planet carry biological matter from one solar system to another inside a comet that impacts upon a planet, thus seeding life upon that planet.
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Biogenesis Biogenesis. Definition. noun. (1) The process in which life forms arise from similar life forms. (2) It asserts that living things can only be produced by another living thing, and not by a non-living thing. Supplement.
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perturb To perturb is defined as to disturb or bother. An example of perturb is for a child to continuously poke his older brother. 1  to cause to be alarmed, agitated, or upset; disturb or trouble greatly.  to cause disorder or confusion in; unsettle.
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biology the living together of two organisms in a relationship that is beneficial to one and destructive to the other. — parasitic, parasitical, adj. parasitology. the branch of biology that studies parasites and parasitism. — parasitologist, n. parhomology. the biological process of imitative homodynamy. — parhomologous, adj.he branch of biology that studies the relation of soil management to the nutrition, growth, and erop yield of plants. — agrobiologist, n. — agrobiologic, agrobiological, adj. amensalism. the living together of two organisms in a relationship that is destructive to one and has no effect on the other.
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- Definition of BIOLUMINESCENCE. : the emission of light from living organisms; also: the light so produced.— bio·lu·mi·nes·cent \-sənt\ adjective.ADVERTISEMENT. the emission of light from living organisms; also: the light so produced.
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- These pro-. cesses include both particle reworking and burrow ventilation.With this definition, bioturbation. acts as an ‘umbrella’ term that covers all transport processes and their physical effects on the sub-. stratum. Particle reworking occurs through burrow construction and maintenance, as well as.
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- Term. bioluminescence. Definition. production of light by liviing organisms as a result of a chemical reaction either within certain cells or organs or outside the cells in some form of excretion.
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- Medical Definition of BIOGENESIS. 1. : the development of life from preexisting life—compare abiogenesis. 2. : a supposed tendency for stages in the evolutionary history of a race to briefly recur during the development and differentiation of an individual of that race. 3.
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Bioluminescence Bioluminescent Plankton can be spotted in the Indian Ocean. Bioluminescence is the production and emission of light by a living organism. Light is released by a chemical reaction.
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Biofilter Biofiltration is a pollution control technique using living material to capture and biologically degrade pollutants. Common uses include processing waste water, capturing harmful chemicals or silt from surface runoff, and microbiotic oxidation of contaminants in air.iofiltration is thus usually referred to as a fixed–film process. Generally, the biofilm is formed by a community of different microorganisms (bacteria, fungi, yeast, etc.), macro-organisms (protozoa, worms, insect’s larvae, etc.) and extracellular polymeric substances (EPS) (Flemming and Wingender, 2010).
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total legal An LLC can be taxed either as a pass-through entity, like a sole proprietorship or partnership, or as a regular corporation. By default, an LLC is taxed as a pass-through entity, where the owners just pay taxes on the profits of the LLC at their individual tax rates. This is different from a regular C Corporation, which pays a corporate tax on its net income before distributing profits to the stockholders (the owners) as dividends.
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BIOREMEDIATION - AN OVERVIEW By definition, bioremediation is the use of living organisms, primarily microorganisms, to degrade the environmental contaminants into less toxic forms. It uses naturally occurring bacteria and fungi or plants to degrade or detoxify substances hazardous to human health and/or the environment.
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Biosphere Geochemists define the biosphere as being the total sum of living organisms (the biomass or biota as referred to by biologists and ecologists). In this sense, the biosphere is but one of four separate components of the geochemical model, the other three being geosphere, hydrosphere, and atmosphere.
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- From Wikipedia, the free encyclopedia. Biodynamic agriculture is a method of organic farming originally developed by Rudolf Steiner that employs what proponents describe as a holistic understanding of agricultural processes.ne to three grams (a teaspoon) of each preparation is added to a dung heap by digging 50 cm deep holes with a distance of 2 meters from each other, except for the 507 preparation, which is stirred into 5 liters of water and sprayed over the entire compost surface.
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perturbation 2. : a disturbance of motion, course, arrangement, or state of equilibrium; especially: a disturbance of the regular and usually elliptical course of motion of a celestial body that is produced by some force additional to that which causes its regular motion.
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biomagnification (bī'ō-māg'nə-fĭ-kā'shən) The increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain. As a result of biomagnification, organisms at the top of the food chain generally suffer greater harm from a persistent toxin or pollutant than those at lower levels. Compare bioaccumulation.
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bio- bio-. combining form. 1. indicating or involving life or living organisms: biogenesis; biolysis. 2. indicating a human life or career: biography; biopic.
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Biological pollution Biopollution Level (BPL) is a quantitative measure of the magnitude of the biological invasion impact, ranging from no impact (BPL=0) through weak (BPL=1), moderate (BPL=2), strong (BPL=3) and massive (BPL=4) impact.
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- Biomagnification. Biological magnification(or biomagnification) is the buildup of certain substances, such as DDT, in the bodies of organisms at higher trophic levelsof food webs. DDT was once used extensively as an insecticide. DDT builds up in the fatty tissuesof organisms.