Final answer:
Inferior and lateral describe positions in the body. Bilateral symmetry enables mobility in animals.
Step-by-step explanation:
Inferior (or caudal) describes a position below or lower than another part of the body proper, near or toward the tail. Lateral describes the side or direction toward the side of the body. The terms anterior, posterior, dorsal, and ventral are also used to describe positions in the body. Bilateral symmetry is found in both land-based and aquatic animals and enables a high level of mobility