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[20 minutes]

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Natural Cycles - Full Program

Series: Ecology Series

What are natural cycles? This video explores the cycles of living things, like circadian rhythms, hibernation, estivation, and migration. It also discusses the nonliving cycles that organisms depend on, including the water cycle, the oxygen and carbon cycle, and the nitrogen cycle.

© 2003, Visual Learning Company

Closed Captioned  Grade Level(s): 6 - 9
Media Type: Video
Subject: Science | Earth Sciences | Environment | Ecosystems