Rearrange these answers please.

water is swallowed by the mouth and pumped to the gills, water is pumped behind the gill cover, gill filaments absorb oxygen from water and release carbon dioxide.

Explanation:

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.