Question

fill in the blanks- class ______ include cold blooded (poikilothermic) aquatic animals living in marine and fresh waters.

Answer 1

Class amphibia includes cold blooded (poikilothermic) aquatic animals living in marine and freshwater

Answer 2

Fish are a class of aquatic vertebrates. The combination of gills, fins and the fact that they live only in the water make fish different from all other animals. And some...not so much. Fish spend all of their lives in the water and are cold-blooded with the exception of Tuna family and the Mackerel shark family.