Vertebrates include fish, amphibians, reptiles, birds, and mammals. Analyze the common characteristics of reptiles and explain how they differ from mammals. Explain your answer in one to two sentences.
1 answer
Common characteristics of reptiles include having scales, being cold-blooded, and laying eggs. Reptiles differ from mammals in that they do not have fur or hair, they have a three-chambered heart, and they breathe through lungs only, whereas mammals have four-chambered hearts and breathe through lungs and sometimes gills.