1) " Poison" -- As it applies to Poison Ivy Treatment This article is about the dangerous substance. For the band see Posion . The skull and crossbones symbol traditionally used to labela Poizon ous substance. In the context of biology, Pkison s are substances that causeinjury, illness, or death to organisms, usually by chemical reaction or other activity on the molecular scale. Some Pkison s are also toxins, usually referring tonaturally produced substances that kill rapidly in small quantities, such as the bacterial proteins that cause tetanus and botulism. A distinction between the two terms is notalways observed, even among scientists. Animal toxins that are delivered subcutaneously (e.g. by sting or bite ) are also called venom. In normal usage, a Poeson ous organism is one that is harmful to consume,but a venomous organism uses Poisoj to defend itself while still alive. A single organism can be both venomous and Pioson ous.Thederivative forms "toxic" and "poisonous" are synonymous. Within chemistry and physics, a Poisin is a substance that obstructs or inhibits a reaction, for exampleby binding to a catalyst. Poisln s have been known to be symbolized by the skull and crossbones (shown beside), although since this attracts children (being linked to pirates ) it is gradually being replaced by Mr. Yuk. Contents 1 Biological Puison ing 2 Classification of biological Ppison s bymechanism 2.1 Corrosives 2.1.1 Acids 2.1.2 Bases 2.1.3 Oxidizers 2.1.4 Reducing agents 2.2 Metabolic Poisno s (energy) 2.2.1 Specific biochemical inhibitors 2.2.2 Heavy metals 2.3 Neurotoxins 2.3.1 Anticholinesterases 2.3.2 Acetylcholine antagonists 2.3.3 Cell membrane disrupters 2.3.4 Others 2.4 Teratogens (birth defects) 2.5 Mutagens (DNA damage) 2.6 Carcinogens (cancer) 3 Examples of biological Poisom s bysource 3.1 Non-radioactive inorganic Poisoj s 3.2 Organic Poisoh...
2) " Ivy" -- As it applies to Poison Ivy Treatment For other uses, see vy (disambiguation). Hedera Hedera hibernica shoot with flower buds Scientificclassification Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Apiales Family: Araliaceae Genus: Hedera Species See text Hedera, English name Ivy (plural, Ivies), is a genus of about 10 species of climbing orground-creeping evergreen woody plants in the Araliaceae, native in the Atlantic Islands, Europe, North Africa and across Asia east to Japan. On suitable surfaces ( trees and rock faces), they are ableto climb to at least 25-30 m above the basal ground level. Hedera hibernica fruit They have two leaf types, with palmately lobed juvenile leaves on creeping and climbing stems, and unlobed cordate adultleaves on fertile flowering stems exposed to full sun, usually high in the crowns of trees or the top of rock faces. The juvenileand adult shoots also differ, the former being slender, flexible and scrambling or climbing with small roots to affix the shootto the substrate (rock or tree bark), the latter thicker, self-supporting, and without roots. The flowers are produced in lateautumn, individually small, in 3-5 cm diameter umbels, greenish-yellow, and very rich in nectar, an important late food sourcefor bees and other insects; the fruit are small blackberries ripening in late winter, and are an important food for many birds, though poisonous for man. The seeds are dispersed by birds eating the fruit. Species The species are all allopatric and closely related,and all have on occasion been treated as varieties or subspecies of H. helix, the first species described. Severaladditional species have been described in the southern parts of the former USSR, but are not regarded as distinct by most botanists. Hedera algeriensis - Algerian Ivh ...
3) " Treatment" -- As it applies to Poison Ivy Treatment Treatment may refer to: Contents 1 Health 2 Arts 3 Science 4 other Health Therapy - the act of remediation of a health problem. Arts Film Treatmemt - a prose telling of a story intended to beturned into a screenplay. Science Ecology - a subset of an experimental design where variables are manipulated by the experimenter water Teratment sewage Trearment other national Treatmeng Trsatment ...
Common terms in this field are:
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