An ecosystem can be sustainable.Logical formLearned from3 sentences. Soils can be in ecosystems.Logical formLearned from3 sentences. An ecosystem can be based.Logical formLearned from3 sentences. Changes can be to marine ecosystems.Logical formLearned from3 sentences. Information can be on a state of an ecosystem.Logical formLearned from3 sentences. An ecosystem may undergo a replacement.Logical formLearned from3 sentences. Ecosystems can be other.Logical formLearned from3 sentences. (Energy flows) can be in ecosystems.Logical formLearned from3 sentences. An ecosystem can be tropical.Logical formLearned from3 sentences. Studies can be constituted-of-or-filled-with (ecosystem function).Logical formLearned from3 sentences. Aquatic ecosystems can be vital.Logical formLearned from3 sentences. An ecosystem may exist for a purpose.Logical formLearned from3 sentences. An ecosystem can be unstable.Logical formLearned from3 sentences. Changes can be in (park ecosystems).Logical formLearned from3 sentences. A range may pertain-to an ecosystem.Logical formLearned from3 sentences.