Biomass
Biomass is the amount of living matter in an ecosystem. The amount of different kinds of plants and animals there are leads to a balance… or an imbalance. Learn more…
http://www.cod.edu/PEOPLE/FACULTY/FANCHER/TrophicPyramids.htm
http://www.sciencedaily.com/articles/b/biomass_(ecology).htm
http://qldscienceteachers.tripod.com/junior/biology/foodchains.html
Take an online quiz! http://qldscienceteachers.tripod.com/junior/quizzes/biology_foodchains.html