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2.3 The Biosphere is a Dynamic and Open System

In this section you will find materials that support the implementation of 2.3: The Biosphere is a Dynamic and Open System. Use the navigation below to find the materials.

Section Materials


Visions of Earth, by AGI
A four-DVD set on interactions in Earth systems.

The Gulf of Mexico Dead Zone, by SERC
The Gulf of Mexico dead zone is an area of hypoxic waters at the mouth of the Mississippi River. High nutrient load from farm and industry runoff along the Mississippi River stimulates algal blooms, which eventually deplete dissolved oxygen in the water. This part of the Microbial Life Education Resources site provides information about the phenomena as well as collections of resources related to the topic.

Whale Evolution, by PBS
How did the whale lose its legs? Find out in this segment from Evolution: "Great Transformations."

The Rise of Mammals, by PBS
This diagram shows the enormous increase in the variety of mammals since the Cretaceous period.

Nature: Triumph of Life, by PBS
Despite overwhelming obstacles, life on Earth has evolved from the most humble of beginnings to a level of diversity that challenges human comprehension. The fittest have indeed survived -- even in places where no living creatures could be thought to exist. NATURE's six-part series TRIUMPH OF LIFE presents the remarkable story of evolution and its survivors. This Web companion to the series features essays, video clips, and special interactive features that explore the amazing story of life on Earth.

Deep Time, by PBS
Explore 4 billion years of life on Earth, and discover major transformations, geological changes, and extinction episodes.

Tennessee vs. John Scopes, The "Monkey Trial", by The University of Missouri at Kansas City Law School
The "Famous Trials in American History" website presents a synopsis of the 1925 trial, "Tennessee vs. John Scope." Also provided are background information, excerpts from the trial transcript, and much more.

Evolution Library, by PBS
Browse resources for evolution on this very thorough site.

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Visions of Earth, by AGI
82 High-definition animations showing a variety of Earth and space system processes.

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