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Nitrogen & Phosphorus Cycles: Always Recycle! Part 2 - Crash Course Ecology #9

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Published on Dec 31, 2012

Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitrogen and phosphorus cycles.

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Table of Contents

Nitrogen Cycle 1:46
Nitrogen Fixing Bacteria 2:32
Nitrifying Bacteria 3:24
Denitrifying Bacteria 4:34
Phosphorous Cycle 5:16
Lithosphere 5:27
Plants 5:56
Animals 5:56
Decomposers 5:56
Aquatic & Marine Ecosystems 6:24
Sedimentation & Weathering 6:55
Synthetic Fertilizers 7:23

References and image licenses for this episode can be found in the Google document here: http://dft.ba/-3fDT Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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