Two alpinists

Acclimatization is the process of an organism adjusting to chronic change in its environment, often involving temperature, moisture, food, often relating to seasonal climate changes. (In laboratory conditions, this process is controlled to one variable change only and is termed "Acclimation"). Acclimatization usually occurs in a short time, and within one organism's lifetime (compare adaptation). This may be a discrete occurrence or may instead represent part of a periodic cycle, such as a mammal shedding heavy winter fur in favor of a lighter summer coat. Where acclimatization occurs naturally, some authors have used acclimation to describe the process of an organism being forced to adjust to changes in their environment by artificial means, such as in a laboratory setting.^[1] Photo by Seabhcan. ... Photo by Seabhcan. ... For other uses, see Adaptation (disambiguation). ... For other uses, see Fur (disambiguation). ... Acclimation is a change occurring in an individual as a result to prolonged exposure of a particular environmental condition, such as a horse shedding its winter coat to produce a lighter summer coat. ...

Plants

i dont no what the hell this is about but im going to carry on writing beacuse this is a load of **** Many plants, such as maple trees, irises, and tomatoes, can survive freezing temperatures if the temperature gradually drops lower and lower each night over a period of days or weeks. The same drop might kill them if it occurred suddenly. This process is called hardening and involves several changes, such as a decrease in the water content and an increase in the sugar content of the plant, lowering the freezing point of sap. See also Maple computer algebra system. ... Species See text Iris is a genus of between 200-300 species of flowering plants with showy flowers which takes its name from the Greek word for a rainbow, referring to the wide variety of flower colors found among the many species. ... For other uses, see Tomato (disambiguation). ... Freezing point can refer to several things: For the chemistry term, see Melting point. ... The abbreviation, acronym, or initialism SAP has several different meanings: SAP AG, a German software company, or its various products such as SAP R/3 or SAP Business Information Warehouse second audio program (television) Session Announcement Protocol Soritong audio player Simple As Possible Computer Architecture Structural Adjustment Program of the...

Animals

Animals acclimatize in many ways. Sheep grow very thick wool in cold, damp climates. Fish are able to adjust only gradually to changes in water temperature and quality. Tropical fish sold at pet stores are often kept in acclimation bags until this process is complete. Species See text. ... For other uses, see Wool (disambiguation). ... For other uses, see Fish (disambiguation). ... A typical pet store in Nijmegen, The Netherlands. ...

Humans

When humans move from a cool or temperate environment to a hot, dry desert environment or vice versa, they should spend up to seven days acclimatizing to the change in their environment. This lets the body make internal adjustments (see homeostasis) to compensate for the change in environment conditions. If the acclimatization process is ignored, then the person is at higher risk for heat related injuries (heat stroke, heat cramp, pneumonia). Look up Cool in Wiktionary, the free dictionary. ... For the usage in virology, see temperate (virology). ... This article is about arid terrain. ... Homeostasis is the property of either an open system or a closed system, especially a living organism, which regulates its internal environment so as to maintain a stable, constant condition. ... Hyperthermia is an acute condition resulting from excessive exposure to heat, it is also known as heat stroke or sunstroke. ... Heat cramps are a form of heat injury. ... This article is about human pneumonia. ...

Acclimatization to high altitude continues for months or even years after initial ascent, and ultimately enables humans to survive in an environment that, without acclimatization, would kill them. Humans who migrate permanently to a higher altitude naturally acclimatize to their new environment by developing an increase in the number of red blood cells to increase the oxygen carrying capacity of the blood, in order to compensate for lower levels of oxygen in the air. ^[2] High altitude are regions on the Earths surface (or in its atmosphere) that are high above mean sea level. ... Human red blood cells Red blood cells are the most common type of blood cell and are the vertebrate bodys principal means of delivering oxygen to body tissues via the blood. ... General Name, symbol, number oxygen, O, 8 Chemical series nonmetals, chalcogens Group, period, block 16, 2, p Appearance colourless (gas) colourless (liquid) Standard atomic weight 15. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... General Name, symbol, number oxygen, O, 8 Chemical series nonmetals, chalcogens Group, period, block 16, 2, p Appearance colourless (gas) colourless (liquid) Standard atomic weight 15. ... Look up air in Wiktionary, the free dictionary. ...

See also

• Altitude sickness
• Vostok Station

Altitude sickness, also known as acute mountain sickness (AMS) or altitude illness is a pathological condition that is caused by acute exposure to high altitudes. ... Lake Vostok composite image (NASA) Vostok Station (Russian: ) is a Russian (formerly Soviet) research station located near the South Geomagnetic Pole, at the center of the East Antarctic Ice Sheet. ...

References

• World Book encyclopedia 1989
• Other Ecology [1]

World Book Encyclopedia is, according to its publisher in the United States, the number-one selling print encyclopedia in the world [1]. The first edition (1917) contained 8 volumes. ...

Footnotes

1. ^ Schmidt-Nielsen, Knut. Animal Physiology: adaptation and environment. 4th Ed. Cambridge ; New York : Cambridge University Press, 1990.
2. ^ Kenneth Baillie and Alistair Simpson. Altitude oxygen calculator. Apex (Altitude Physiology EXpeditions). Retrieved on 2006-08-10. - Altitude physiology model

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