why is it important that the brain not exclusively control a

why is it important that the brain not exclusively control all of an animal\'s function

Solution

Jellyfish can live without a brain,jellyfish do have a nervous system.They have a network of nerves which is sensitive to light and temperature.These nerves can detect touch and salinity. Another characteristic feature of jellyfish(some specis) are their tentacles.They are used to catch food with the help of tentacles.