Final answer:
The structures of the cochlea are responsible for hearing, the structures of the saccule and utricle are responsible for static equilibrium, and the semicircular ducts and ampulla are responsible for dynamic equilibrium.
Step-by-step explanation:
The structures of the cochlea are responsible for hearing, while the structures of the saccule and utricle are responsible for static equilibrium, and the semicircular ducts and ampulla are responsible for dynamic equilibrium.