How do cnidarians obtain oxygen?

Related questions

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4. How do Cnidocytes work?
5. What animal is found in the phylum ctenophora?
6. What causes a Nematocyst to discharge?
7. Should you pee on a stingray sting?
8. What kind of jellyfish can kill you?
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10. What is the difference between Cnidocyte and Nematocyst?

Tags

1. #cnidarians
2. #organs
3. #sometimes
4. #algae
5. #excess
6. #their
7. #other
8. #around
9. #waste
10. #lungs
11. #symbiotic
12. #coral
13. #gases
14. #cells
15. #oxygen
16. #while
17. #experience
18. #expel
19. #production
20. #respiratory