In this comprehensive lesson unit, students examine how overfishing has affected Chesapeake Bay's ecosystem. They will study food webs from the past and present and graph related data.

Given illustrations, students will analyze the flow of matter and energy in food chains, food webs, and ecological pyramids.

Create the parameters of your own ecosystem by choosing which producers and consumers live there. Visualize how the food web operates and species populations change. This simulator mimics the food web within a typical ecosystem and gives...

Explains what a food web is, the complexity of one in a rainforest, and how energy flows through a food web.

Learn about the mysterious jellyfish blooms that have occurred in the world's oceans. Because the resulting alteration to the marine food web has had devastating effects, researchers grow and study jellyfish at the Monterey aquarium....

Describes the characteristics of a tundra biome, how a tundra food chain compares to a tropical food chain, and what the different trophic levels look like.