Bozeman Science
Natural Ecosystem Change
In this video Paul Andersen explains how the Earth's climate will natural change due to interactions between the Sun and Earth, volcanism, and plate tectonics. Species may go extinct leading to adaptive radiation or may move to a...
Bozeman Science
Biogeochemical Cycling
Paul Andersen explains how biogeochemical cycling is used to move nutrients from the environment into living material and back again. He explains the water cycle, the carbon cycle, the nitrogen cycle and the phosphorus cycle. He also...
Bozeman Science
Biogeochemical Cycles
In this video Paul Andersen explains how biogeochemical cycles move required nutrients through the abiotic and biotic spheres on our planet. Matter on the Earth is conserved so producers must receive required nutrients through the water...
Professor Dave Explains
The Terrestrial Environment
We just learned about the aquatic environment, so now let's head onto dry land! How did life initially get onto land? What can we learn about soil? What are the carbon, nitrogen, and phosphorus cycles? Let's check it all out!
Crash Course
Crash Course Ecology #9: Nitrogen & Phosphorus Cycles: Always Recycle Part 2
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. [9:23]