environmental variation

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• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• variation — variational, variative /vair ee ay tiv/, adj. variationally, variatively, adv. /vair ee ay sheuhn/, n. 1. the act, process, or accident of varying in condition, character, or degree: Prices are subject to variation. 2. an instance of this: There… …   Universalium

• Environmental groups and resources serving K–12 schools — This article includes information about environmental groups and resources (such as those provided by government, its agencies, and existing or proposed legislation) that serve K–12 schools in the United States and internationally.pecific… …   Wikipedia

• variation — noun ADJECTIVE ▪ considerable, dramatic, enormous, extreme, great, major, marked, significant, substantial, tremendous, wide …   Collocations dictionary

• Environmental scanning electron microscope — Wool fibers imaged in an ESEM by the use of two symmetrical plastic scintillating backscattered electron detectors …   Wikipedia

• Environmental impacts of dams — The environmental impacts of dams have come under renewed examination in recent years. Dam proponents have historically understood that dams largely improve the status of water related energy and environmental issues by, for example, producing… …   Wikipedia

• Environmental Scanning Electron Microscope — Das Environmental scanning electron microscope (ESEM) stellt eine spezielle Variante des Rasterelektronenmikroskops dar. Der wesentliche Unterschied zu einem konventionellen Rasterelektronenmikroskop (REM, bzw. engl. SEM) ist das geringere Vakuum …   Deutsch Wikipedia

• environmental — adj. Environmental is used with these nouns: ↑affair, ↑amenity, ↑aspect, ↑awareness, ↑benefit, ↑biology, ↑catastrophe, ↑cause, ↑challenge, ↑change, ↑chemical, ↑ …   Collocations dictionary

• variation — n. [L. variare, to change] Differences resulting from nongenetic responses of the phenotype to immediate environmental conditions; ecophenotype …   Dictionary of invertebrate zoology

• Facilitated variation — is a new theory that has been presented by Marc W. Kirschner, a professor and chair at the Department of Systems Biology, Harvard Medical School, and John C. Gerhart, a professor at the Graduate School, University of California, Berkeley.The… …   Wikipedia

• Human genetic variation — is the natural variation in gene frequencies observed between the genomes of individuals or groups of humans. Variation can be measured at both the individual level (differences between individual people) and at the population level, i.e.… …   Wikipedia