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4. These vertebrates are covered with scales and spend their lives in water. Fish b. birds c. reptiles d. mammals 5. They cold blooded, meaning they can't regulate their body temperature, so it changes depending on the environment d. marnmals c. reptiles a. invertebrates b. vertebrates​

4 These Vertebrates Are Covered With Scales And Spend Their Lives In Water Fish B Birds C Reptiles D Mammals 5 They Cold Blooded Meaning They Cant Regulate Thei class=