How can jellyfish live without a brain?

Related questions

1. How many species of ctenophora are there?
2. What animals are immortal?
3. Can Jellyfish feel pain?
4. Can jellyfish die?
5. How do cnidaria feed?
6. How do Cnidocytes work?
7. Do starfish die?
8. What animal lives the shortest?
9. Can you eat rat?
10. What is the difference between Cnidocyte and Nematocyst?

Tags

1. #touch
2. #their
3. #nervous
4. #detect
5. #these
6. #basic
7. #while
8. #central
9. #without
10. #thing
11. #nerves
12. #brain
13. #temperature
14. #system
15. #jellyfish
16. #respond
17. #stimuli
18. #salinity
19. #reflexively
20. #tentacles