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- Q587698 subject Q7085884.
- Q587698 subject Q9140393.
- Q587698 abstract "An ectotherm, from the Greek εκτός (ektós) "outside" and θερμός (thermós) "hot", is an organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature. Some refer to these organisms as "cold blooded". Such organisms (for example frogs) rely on environmental heat sources, which permits them to operate at very economical metabolic rates. Some of these animals live in environments where temperatures are practically constant, as is typical of regions of the abyssal ocean. In contrast, in places where temperature varies so widely as to limit the physiological activities of other kinds of ectotherms, many species habitually seek out external sources of heat or shelter from heat; for example, many reptiles regulate their body temperature by basking in the sun, or seeking shade when necessary in addition to a whole host of other behavioral thermoregulation mechanisms. In contrast to ectotherms, endotherms rely largely, even predominantly, on heat from internal metabolic processes. In ectotherms, fluctuating ambient temperatures may affect the body temperature. Such variation in body temperature is called poikilothermy, though the concept is not widely satisfactory and the use of the term is declining. In small aquatic creatures such as Rotifera, the poikilothermy is practically absolute, but other creatures (like crabs) have wider physiological options at their disposal, and they can move to preferred temperatures, avoid ambient temperature changes, or moderate their effects.".
- Q587698 thumbnail Basking_turtles.JPG?width=300.
- Q587698 wikiPageWikiLink Q1057.
- Q587698 wikiPageWikiLink Q10811.
- Q587698 wikiPageWikiLink Q1651205.
- Q587698 wikiPageWikiLink Q180148.
- Q587698 wikiPageWikiLink Q189124.
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- Q587698 wikiPageWikiLink Q35497.
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- Q587698 wikiPageWikiLink Q53636.
- Q587698 wikiPageWikiLink Q6037242.
- Q587698 wikiPageWikiLink Q60661.
- Q587698 wikiPageWikiLink Q6271957.
- Q587698 wikiPageWikiLink Q7085884.
- Q587698 wikiPageWikiLink Q72725.
- Q587698 wikiPageWikiLink Q866283.
- Q587698 wikiPageWikiLink Q901269.
- Q587698 wikiPageWikiLink Q906470.
- Q587698 wikiPageWikiLink Q907248.
- Q587698 wikiPageWikiLink Q9140393.
- Q587698 comment "An ectotherm, from the Greek εκτός (ektós) "outside" and θερμός (thermós) "hot", is an organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature. Some refer to these organisms as "cold blooded". Such organisms (for example frogs) rely on environmental heat sources, which permits them to operate at very economical metabolic rates.".
- Q587698 label "Ectotherm".
- Q587698 depiction Basking_turtles.JPG.