Question is on the image.

Osteichthyes

Explanation:

Osteichthyes includes the largest number of living species of all scientific classes of vertebrates, more than 28,000 species. Osteichthyes account for about 96% of all fish species.

chemical because it warmed up which involves temperature and it bubbled which includes changing

mark me brainiest

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).