| 释义 |
Definition of poikilotherm in English: poikilothermnoun ˈpɔɪkɪlə(ʊ)ˌθəːm-kil- Zoology An organism that cannot regulate its body temperature except by behavioural means such as basking or burrowing. 〔动〕变温动物。常与HOMEOTHERM 相对 Often contrasted with homeotherm Example sentencesExamples - On the positive side, there is substantial evidence that poikilotherms have lower metabolic rates and longer life spans at cooler temperatures (reviewed by FINCH 1990; ARKING 1998).
- In addition to sequence length, differences between homeotherms and poikilotherms (hagfish, gray mullet, zebrafish, toad, and snake) occur at positions 373 and 400, respectively.
- Winters may be shorter but they will still be very cold, while concomitant changes in insulating snow cover will have other effects on these poikilotherms.
- The 10-fold seasonal differences in FMR were reasonable for an ectothermic poikilotherm.
- This is distinct from poikilotherms, such as reptiles and amphibians, whose body temperature is just above the ambient temperature, and varies with it.
Derivativesadjective pɔɪkɪlə(ʊ)ˌˈθəːm(ə)l Zoology However, some poikilothermal animals do not have a high concentration of SM and HSM in their lens.
noun -ˈθəːmɪə Zoology adjective pɔɪkɪlə(ʊ)ˌˈθəːmɪk Zoology In poikilothermic animals temperature can be a major variable. Example sentencesExamples - Little is known about the physiological time of poikilothermic animals and we know nothing about the physiological time of modular organisms.
- Because amphibians are poikilothermic, this unequal geographic distribution might have led to shorter generation times and higher metabolic rates in the evolution of neobatrachians.
- General anesthesia inactivates the body's temperature regulating mechanism and transforms the homeothermic body into a poikilothermic body - one that is altered by the temperature of the environment.
- As evidenced by the articles in this volume, a recent increase in interest in the mating systems of poikilothermic vertebrates has focused primarily on fishes, a few amphibians, and squamate reptiles.
noun Zoology This mode of thermoregulation, that can neither be classified as homeothermy (constant temperature as in birds or mammals) or poikilothermy (as in fish, amphibians and most reptiles), has been called gigantothermy.
Definition of poikilotherm in US English: poikilothermnoun-kil- Zoology An organism that cannot regulate its body temperature except by behavioral means such as basking or burrowing. 〔动〕变温动物。常与HOMEOTHERM 相对 Often contrasted with homeotherm; compare with cold-blooded Example sentencesExamples - In addition to sequence length, differences between homeotherms and poikilotherms (hagfish, gray mullet, zebrafish, toad, and snake) occur at positions 373 and 400, respectively.
- On the positive side, there is substantial evidence that poikilotherms have lower metabolic rates and longer life spans at cooler temperatures (reviewed by FINCH 1990; ARKING 1998).
- The 10-fold seasonal differences in FMR were reasonable for an ectothermic poikilotherm.
- This is distinct from poikilotherms, such as reptiles and amphibians, whose body temperature is just above the ambient temperature, and varies with it.
- Winters may be shorter but they will still be very cold, while concomitant changes in insulating snow cover will have other effects on these poikilotherms.
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