Picture 1 - This is a picture of goldfish. These goldfish are ectothermic. This means that they receive their heat from external scources. In addition, homeothermic animals have a constant body temperature and poikilothermic animals have a body temperature that fluctuates with ambient temperature. Reptiles are largely ectothermic poikilotherms.
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Picture 2 - This is a picture of an amphibian. This amphibian was found by the shore during my stay in Korea. Just as the goldfish, this amphibian receives its heat from external scources as well, and is a poikilothermic animal that has a body temperature that is largely determined by its surroundings, and fluctuates.
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