1) Succession is the ______growth of new organisms in an environment. a) fast b) speedy c) gradual 2) Primary Succession is when an ecosystem begins to __________. a) wilt b) grow c) fade away 3) Secondary Succession is when an  ecosystem gets wiped out and begins to__________ itself and start over.   a) regenerate b) return c) remind

Ecosystems

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嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?