An ecosystem may undergo an exploitation.Logical formLearned from5 sentences. A role can be in aquatic ecosystems.Logical formLearned from5 sentences. Ecosystems may pertain-to areas.Logical formLearned from5 sentences. An (ecosystem concept) may undergo a use.Logical formLearned from5 sentences. Concern can be for an ecosystem.Logical formLearned from5 sentences. Ecosystems may unto themselves.Logical formLearned from5 sentences. Species can be for conservation of ecosystems.Logical formLearned from5 sentences. (Ocean ecosystems) may pertain-to a us-state.Logical formLearned from5 sentences. Scientific study can be constituted-of-or-filled-with ecosystems.Logical formLearned from5 sentences. An ecosystem may sustain persons.Logical formLearned from5 sentences. Contaminants can be in an ecosystem.Logical formLearned from5 sentences. (Ecosystem management) can be a process.Logical formLearned from5 sentences. Ecosystems can be broad.Logical formLearned from5 sentences. Elements can be in an ecosystem.Logical formLearned from5 sentences. Productivity may pertain-to an ecosystem.Logical formLearned from5 sentences.