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HOW ECOSYSTEMS WORK: ENERGY FLOW AND NUTRIENT CYCLES DVD Zoom

HOW ECOSYSTEMS WORK: ENERGY FLOW AND NUTRIENT CYCLES DVD

SKU: AG7546DVD
HOW ECOSYSTEMS WORK: ENERGY FLOW AND NUTRIENT CYCLES DVD

Availability: In stock

$74.00

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Product Description
    ITEM NO. AG7546DVD Our How Ecosystems Works DVD looks at the processes that are fundamental to all ecosystems. First the concepts of primary productivity, trophic levels, food chains, energy pyramids and the flow of energy through ecosystems are introduced. The program then explains how carbon, nitrogen, phosphorous and water cycle through ecosystems and how human activities can disrupt these cycles and throw them out of balance leading to accelerated eutrophication in lakes in the case of phosphorous imbalances and global warming in the case of carbon imbalances. The following ecosystems worksheets are included with this video: a teachers guide, crossword puzzle and multiple choice questions. Video is Curriculum-Based 2005 Great Pacific Media
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