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Poikilotherm is the opposite of homeotherm – an animal which maintains thermal homeostasis. In principle, the term could be applied to any organism, but it is generally only applied to vertebrate animals. Usually the fluctuations are a consequence of …

Mar 5, 2024 · The temperature of cold blooded or ectothermic animals varies with the environment, while warm blooded or endothermic animals maintain a relatively stable temperature. The animal kingdom falls into two categories based on how species regulate their body temperature : ectothermic and endothermic.

Nov 23, 2024 · Thermoregulation in organisms runs along a spectrum from endothermy to ectothermy. Endotherms create most of their heat via metabolic processes, and are colloquially referred to as “warm-blooded.” Ectotherms use external sources of temperature to regulate their body temperatures.

The meaning of POIKILOTHERM is an organism (such as a frog) with a variable body temperature that tends to fluctuate with and is similar to or slightly higher than the temperature of its environment : a cold-blooded organism.

May 20, 2024 · Warm-blooded animals are those which can keep the same body temperature regardless of temperature fluctuations in the surrounding. Also called Animals with cold blood are also known as poikilothermic animals.

Feb 5, 2024 · Are poikilotherms cold-blooded? Poikilotherms are also called “ectotherms” or “cold-blooded animals.” Such creatures are the thermoregulatory opposites of “endotherms” or “homeotherms” – better known to most of us as “warm-blooded animals” – which are able to maintain a fairly high and constant body temperature ...

Traditionally, homeothermic animals have been known as ‘warm-blooded animals’. While this can help us to remember the differences between homeotherms and poikilotherms, it is not an entirely accurate description.

Poikilotherms: Poikilotherms, also known as cold blooded animals, are animals that make use of external sources of heat to regulate their internal temperature. Poikilothermic creatures, such as fish, amphibians, and reptiles, as well as birds and mammals, lower their metabolism and body temperature during hibernation.

The ability to maintain an internal temperature distinguishes these animals from cold-blooded, or poikilothermic, animals, which usually have about the same temperature as their environment. Warm-blooded animals are able to remain active in situations in which cold-blooded ones cannot.

Poikilotherms (Greek poikilos – ‘various, spotted’, and therme – ‘heat’) are defined as organisms with variable body temperature (Tb) (Figure 1). Typically, Tb in poikilotherms changes as a function of the temperature of their surroundings under normal physiological and …

Humans, like all mammals (as well as birds), are “warm-blooded,” or more correctly “homeothermic,” meaning we maintain our core body organs at a constant temperature. We expend considerable energy to do so, and may die when we cannot.

Many reptiles have high body temperatures (i.e., are warm blooded during the day) when the thermal environment is hot, but they may be cold blooded when the thermal environment is cold (e.g., at night or during winter).

Homeotherms, or "warm-blooded" organisms, possess the ability to maintain a relatively constant internal body temperature, irrespective of the surrounding environment. Mammals and birds are the primary examples of homeotherms. This thermoregulatory strategy enables them to exploit diverse habitats and exhibit sustained activity levels.

Aug 31, 2010 · In contrast, crabs, cod, caterpillars, and the like are “cold-blooded,” or “poikilothermic,” with body temperatures that change with the environment they are in. When the mercury plunges, a poikilotherm, and everything that happens within it, merely slows down.

Homeotherms, or "warm-blooded" organisms, possess the ability to maintain a relatively constant internal body temperature, irrespective of the surrounding environment. Mammals and birds are the primary examples of homeotherms.

Examples of poikilotherms include the "cold-blooded" animals (Kearney et al. 2009), such as most fish, amphibians, and reptiles. On the other hand, homeotherms have specific physiological...

cold-bloodedness, the state of having a variable body temperature that is usually only slightly higher than the environmental temperature. This state distinguishes fishes, amphibians, reptiles, and invertebrate animals from warm-blooded, or homoiothermic, animals (birds and mammals).

Humans, like all mammals (as well as birds), are ‘‘warm-blooded,’’ or more correctly ‘‘homeothermic,’’ meaning we maintain our core body organs at a constant temperature. We expend consid-erable energy to do so, and may die when we cannot.

Cold-blooded animals (poikilotherms) have less physiological control of their heat balance but can seek shade, sun, or shelter from the wind to alter energy gains and losses. In this chapter each term of the animal heat balance equation is reviewed.

The idea that homeothermic populations have a much lower production efficiency than poikilothermic populations, because warm‐blooded individuals exhibit a higher metabolic rate per gram of body weight, is widespread.