sábado, 26 de enero de 2013
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viernes, 18 de enero de 2013
WARM BLOODED & COLD BLOODED ANIMALS
Cold-blooded animals, like reptiles, amphibians, and fish, become hotter and colder, depending on the the temperature outside. For example, when the sun sets at night, their bodies are cooler because it is less warm outside. When the sun is out, however, their bodies soak up the heat and become warmer. |
Mammals and birds are
warm-blooded, which means that they can make their own body heat even when it is
cold outside. Whether it is sunny and hot outside or there is a snowstorm and it
is very cold, warm-blooded animals have body temperatures that usually stay the
same.
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jueves, 17 de enero de 2013
domingo, 13 de enero de 2013
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