As frogs and toads begin the process of metamorphosis (the transformation of an aquatic tadpole to a terrestrial frog or toad), many changes must occur.
(frogs and toads; begin; the process of metamorphosis) (many changes; must occur; T:As frogs and toads begin the process of metamorphosis)
frogs and toads many changes
begin must occur
the process of metamorphosis
T:As frogs and toads begin the process of metamorphosis