bioaccumulation factor
31Median lethal dose — This article is about the toxicological term. For the album by Mudvayne, see L.D. 50 (album). For other uses, see LD50 (disambiguation). In toxicology, the median lethal dose, LD50 (abbreviation for “Lethal Dose, 50%”), LC50 (Lethal Concentration …
32Photosynthesis — Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and vegetation …
33Pollution — For the Fransisco Battiato album, see Pollution (album). For the Goodies episode, see Pollution (The Goodies). Air pollution from World War II weapon production in Alabama, 1942 …
34Toxicology — (from the Greek words τοξικός toxicos poisonous and logos) is a branch of biology, chemistry, and medicine concerned with the study of the adverse effects of chemicals on living organisms.[1] It is the study of symptoms, mechanisms, treatments… …
35Deodorant — Roll on deodorant Rexona Degree brand Deodorants are substances applied to the body to affect body odor caused by bacterial growth and the smell associated with bacterial breakdown of perspiration in armpits, feet and other areas of the body. A… …
36Activated carbon — Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions …
37Competitive exclusion principle — In ecology, the competitive exclusion principle,[1] sometimes referred to as Gause s law of competitive exclusion or just Gause s law,[2] is a proposition which states that two species competing for the same resources cannot coexist if other… …
38Niche construction — Beavers hold a very specific biological niche in the ecosystem: constructing dams across river systems.) Niche construction is the process in which an organism alters its own (or other species ) environment, often but not always in a manner that… …
39Particle (ecology) — In marine and freshwater ecology, a particle is a small object. Particles can remain in suspension in the ocean or freshwater, however they eventually settle (rate determined by Stokes law) and accumulate as sediment. Some can enter the… …
40Persistent organic pollutant — State parties to the Stockholm Convention on Persistent Organic Pollutants Persistent organic pollutants (POPs) are organic compounds that are resistant to environmental degradation through chemical, biological, and photolytic processes …
