Reptiles

Colegio santa clara elite
Excelencia educativa

[pic]

Teacher: Laura Cervantes

Topic: reptile

Student: Diego Benjamin Castillo Rodriguez

Grade: 2º




IntroductionReptiles (Reptilia) are a paraphyletic group of vertebrate amniotes bearingepidermal keratin scales. They were very abundant in the Mesozoic era whendinosaurs emerged, pterosaurs,ichthyosaurs, plesiosaurs and mosasaurs.According to traditional taxonomy reptiles are considered a class, according tocladistic systematics, are a paraphyletic group without taxonomic value.



[pic]features

Most reptiles have adapted to terrestrial life, but finally it was discovered that some live in water. A tough, scaly skin is one of its adaptations. Other adaptations that havecontributed to the success of the reptiles on land are, among others, includingwell-developed lungs, a double-circuit circulatory system, excretory system thatconserves water,strong limbs, internal fertilization and terrestrial eggs shell.Besides the reptiles can control their body temperature by changing the place.



[pic]








body temperature



The ability tocontrol their body temperature is a huge advantage for active animals. The animals we have discussed so far are ectothermic. The ectothermicbehavior used to control body temperature. To warm up, they lie inthe sun all dayor stay under water for the night. To cool down, you move into the shade, swim, ortake shelter in underground burrows.





[pic]





Feeding



The vast majorityof reptiles are carnivores and have a simple and short digestivetract, since the meat is quite simple to break down and digest. Digestion is slower than in mammals, reflecting its slow metabolism atrest and inability to divide andchew your food. This metabolism has low power requirements, allowing large reptiles such as crocodiles and large constrictor snakes to live in a big meal for...