ecosystem, Living thing in their enviroment , depend on , To rely on something , precipitation , The phenomenon of water falling from the sky in different forms , frozen , Extremely cold, icy, migrate , to change habitat or location , hibernate , to sleep through the winter to save energy , arid , very dry from lack of rainfall, nocturnal , Active at night , humid , Very damp or moist , adapt , to change so it’s easier to live somewhere , temperate , not too hot or too cold , coating , covering , outer layer , sap, thick liquid inside a plant , disruption, a change in the way something normally happens .

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