1. In ectotherms , fluctuating ambient temperatures may affect the body temperature. 2. In most ectotherms body size and female fecundity are positively correlated. 3. In addition to behavioral adaptations, physiological adaptations help ectotherms regulate temperature. 4. :Natural selection will not save an ectotherm from a hostile environment. 5. As they warm up, like all ectotherms , they become active. 6. The first trait distinguishes mesotherms from ectotherms , the second from endotherms. 7. Ectotherms can also display the features of homeothermy, especially within aquatic organisms.8. The Italian crested newt is a poikilothermic ectotherm . 9. "' Does anyone know which endotherms and which ectotherms perform estivation and diurnation? 10. Ectotherms also use burrows as a means to keep warm in the cold desert nights.
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