The aquatic, gill-breathing tadpoles are bottom feeders, while the lung-breathing, amphibious (water-and-land dwelling) adults feed on insects.
(gill-breathing tadpoles; are; bottom feeders) (the lung-breathing, amphibious (water-and-land dwelling) adults; feed; on insects)
gill-breathing tadpoles the lung-breathing, amphibious (water-and-land dwelling) adults
are feed
bottom feeders
on insects