Reptiles!!!

 Gabriela Martinez  Micaela Bonilla  Biology P.5  Topic # 32 (essay)

  **__ Reptiles __**  Reptiles belong to the kingdom animalia, phylum chordata. They are characterized by breathing air and having skin covered in scales or scutes. They are cold blooded which means that they cannot regulate body temperature. They characterize from amphibians and mammals, but they are different and unique. All reptiles have dry skin, spinal columns, strong skeletal system and tree chambered hearts (except crocodiles, which have four chambered hearts).  Reptiles are classified into four main groups. They are crocodilia, sphenodonita, squamata and testudines. Reptiles are capable of living in both land and water, like crocodiles and turtles. Most reptiles reproduce sexually, thought some are capable of asexual reproduction. All reptiles need lungs to breathe; they cannot breathe by any other form. Reptiles’ vision is typically adapted to daylight conditions.  Most reptiles lay amniotic eggs. Their offspring resemble the adults at the time of birth itself. Today about 6500 species of reptiles exists; some are crocodiles, snakes, lizards and turtles.