Ecosystem - It is a community of living things that live together in a particular place., Population - It is all the living things of the same species that live in an ecosystem, Producers - They make their own food, Consumers - They eat other producers or consumers, Decomposers - They eat dead plants and dead animals., Food chain  - It is a group of pictures connected with arrows which shows how living things feed.,

Ecosystems

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恢復自動保存: ?