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Environmental Biology - Ecosystems Overview Roles of Organisms Energy Flow Through Ecosystems Food Chains and Webs - Pyramids - Biological Magnification Human vs. Natural Food Chains BioGeoChemical Cycles - The Water Cycle - Carbon Cycle - Oxygen Cycle - Nitrogen Cycle - Phosphorous Cycle 03/02/06 Note To Students and Educators: Did you know that this page is accessed by more people than the next two pages at Marietta College combined? I was surprised, humbled and over ...

Index to this page Food Webs Energy Flow Through Food Chains The Pyramid of Energy The Pyramid of Biomass The Pyramid of Numbers Food Chains The source of all food is the activity of autotrophs, mainly photosynthesis by plants. They are called producers because only they can manufacture food from inorganic raw materials. This food feeds herbivores, called primary consumers. Carnivores that feed on herbivores are called secondary consumers. Carnivores that feed on other ca ...

Food Chains: Prey and Predators Who lives in the Spring Creek Watershed? What is the balance of nature? Activities Create a food chain. Identify the food chains. Solve the link in the food chain. Copyright 1998 Pennsylvania State University Last updated: May 1998

Interesting Facts about Food Chains This section contains a brief description of the food chains and food webs in an ecosystem. Introduction In an ecosystem, plants capture the sun's energy and use it to convert inorganic compounds into energy-rich organic compounds1. This process of using the sun's energy to convert minerals (such as magnesium or nitrogen) in the soil into green leaves, or carrots, or strawberries, is called photosynthesis. Photosynthesis is only the beginning of a chain ...

MSN HomeMy MSNHotmailShoppingMoneyPeople & Chat Sign In Web Search: Encarta® > > Subscriber Sign In| Help Home | Encyclopedia | Dictionary | Thesaurus | World Atlas | Multimedia | Quizzes | Top-10 Lists | Education | Upgrade your Encarta Experience Search Encarta June 10 This Week: Summer Movie Season •What's my line? A movie quotes quiz •Film studies: The history of motion pictures •10 films that should have won the Oscar, but didn't D ...

The Living Sea Predators and Prey A food chain represents the transfer of body-building substances and energy when one organism eats another. Click on the image to show greater detail. As far as we know, nearly all life in the ocean is dependent on plants. Only plants have the ability to manufacture food out of inorganic substances, such as energy from the sun. Thus all animals are dependent on plants, since animals cannot derive nutrition from inorganic substances. Plants produce; ...

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