This site about food poisoning discusses Staphylococcus Aureus - what it is, where the common sources of "staph" are, common symptoms, and what can be done to prevent contamination and infection.

Learn the difference between consumers and decomposers in the ecosystem.

[Free Registration/Login may be required to access all resource tools.] Looks at how the human population has grown. Some consume a tremendous amount of resources and produce a lot of waste.

Explains the characteristics of food chains and food web; the different levels of producers, consumers, and decomposers; and the differences between food chains and food webs. Includes charts and a Venn diagram comparing the two.

Scientists at Harvard University recently invented a robot shaped like the letter "X" that can change its color to blend in with its surroundings. While this robot is currently limited to operating within a laboratory, it could...

After reviewing the roles of consumers, producers and decomposers, you'll create your own food chains using pictures from magazines. The site also has 18 questions to see if you can identify the ecologic role played by various organisms.