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ectotherm |
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ectotherm‘Cold-blooded’ animal (see poikilothermy), such as a lizard, that relies on external warmth (ultimately from the Sun) to raise its body temperature so that it can become active. To cool the body, ectotherms seek out a cooler environment. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Instead, these ectotherms keep a healthy body temperature by moving between colder and warmer areas. In the lake frog (Rana ridibunda), West Nile viremia capable of infecting mosquitoes (14,15) develops, and antibodies develop in Nile crocodiles (Crocodylus niloticus) and other ectotherms alter natural infection (16,17). Seasonal cues such as photoperiod and temperature, acting through the neuroendocrine system, have been proposed as responsible for multiple changes in immune function indicators in ectotherms (44). |
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