The gills disappear as lungs develop, forcing the tadpole to gulp air at the water's surface.
(The gills; disappear; T:as lungs develop) (lungs; develop; ) (The gills; forcing; the tadpole; to gulp air at the water's surface) (the tadpole; to gulp; air; L:at the water's surface)
The gills lungs The gills the tadpole
disappear develop forcing to gulp
T:as lungs develop
the tadpole to gulp air at the water's surface
air L:at the water's surface