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