Hello, Sameedfarooqui6
You see jellyfish adapted to not having a brain but they still have a nervous system. This nervous system goes to there tentacles which helpes jellyfish detect tempatures, touch, food etc.
If that did help i would gladly accept brainliest thanks duded and have a great day!
That we all came from a common ancestor.
<span>Temperate Decidous Forest.. </span>