text: Some aquatic organisms have developed unique respiratory mechanisms to survive in low oxygen conditions using organs other than the lungs or gills?
classes:  No, europe approves Pfizer vaccination for children 5-11 years old.  Besides, europe approves Pfizer vaccination for children 5-11 years old.  Yes, europe approves Pfizer vaccination for children 5-11 years old.  Meanwhile, europe approves Pfizer vaccination for children 5-11 years old.