How do echinoderms get their energy

chinoderms do not actively regulate their body temperature. Instead they live in environments where the temperature of the environment is at a temperature that they can survive in. (1) Echinodermsare considered cold-"blooded" organisms, meaning that the temperature of their bodies corresponds to the temperature of the environment

Echinoderms get their food and oxygen for energy. They use tube feet to obtain from the water. The tiny tube feet are involved in passing collected food towards the central mouth. These animals are detritivores performing similar functions to earthworms on the land in recycling nutrients.