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

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

Complete illustrated discussion of energy flow within ecosystems, including discussions of trophic levels, ecological pyramids, food chains and webs, biological magnification, and cycles.

Learners analyze food chains, webs, and pyramids to determine how energy flows and matter cycles through ecosystems.