The ecosystems that evolved under these natural conditions require alternating wet and dry conditions to survive.
(The ecosystems; evolved; L:under these natural conditions) (The ecosystems that evolved under these natural conditions; require; alternating wet and dry conditions) Context(The ecosystems that evolved under these natural conditions require,List([0, 66))):(The ecosystems that evolved under these natural conditions; require alternating; wet and dry conditions to survive)
The ecosystems that evolved under these natural conditions require,List([0, 66))
The ecosystems The ecosystems that evolved under these natural conditions The ecosystems that evolved under these natural conditions
evolved require require alternating
L:under these natural conditions
alternating wet and dry conditions
wet and dry conditions to survive