when the larva or tadpole living in water and breathing with gills develops into an adult, it leaves 
(the larva or tadpole; develops; into an adult) (it; leaves; T:when the larva or tadpole living in water and breathing with gills develops into an adult)
the larva or tadpole it
develops leaves
into an adult
T:when the larva or tadpole living in water and breathing with gills develops into an adult