What is an ectothermic vertebrate?

And so, an endothermic vertebrate is an animal that can produce its own heat and possesses a spinal backbone consisting of vertebrae. Examples of these organisms include most mammals (including humans), most birds, and some reptiles.

Explanation:

Ectothermic vertebrates are, for example, fish, amphibians and reptiles. Their temperature depends on the environment. The contrary to ectothermic are endothermic vertebrates, such as birds or mammals