Friday, November 1, 2013

Reptiles

Reptiles Reptiles are vertebrate, or backb wizd animals constituting the class Reptilia and are characterized by a combination of features, none of which alone could separate only reptiles from all other animals.The characteristics of reptiles are numerous, therefore can non be explained in great detail in this report.
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In no special order, the characteristics of reptiles are: cold- line of productsedness; the presence of lungs; direct development, without dark-green forms as in amphibians; a dry skin with scales unless not feathers or hair; an amniote egg; internal binding; a three or four-chambered heart ; two aortal arches (blood vessels) carrying blood from the heart to the body, unlike mammals and birds that only have one; a metanephric kidney; twelve pairs of cranial nerves; and skeletal features much(prenominal) as limbs with unremarkably five clawed fingers or toes, at least two spinal bones associated with the pelvis, a ace ball-and-socket connection at the head-neck joint instead of two, as in advanced...If you want to place a full essay, order it on our website: OrderCustomPaper.com

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