Bio Topics
Bio Topics: Feeding Relationships in an Ecosystem
This overview of feeding relationships illustrates to students the trophic levels of different organisms in an ecosystem. Hover the mouse over different terms to see their definitions.
BiologyWise
Biology Wise: Understanding the Process of Biological Magnification
Biological magnification is the term used to described the increasing accumulation of substances in organisms as one looks at higher trophic levels in a food chain. When that substance is a toxin, such as a heavy metal or a pesticide,...
Georgia Department of Education
Ga Virtual Learning: Ecosystems
This module offers an in depth study of the fundamental components of ecosystems. Activities include mini-lessons with videos and student assignments.
Annenberg Foundation
Annenberg Learner: The Habitable Planet: Ecosystems: Energy Flow Through
Detailed explanation of the processes by which energy flows through an ecosystem. Scroll down and open Section 3.
CK-12 Foundation
Ck 12: Life Science: Flow of Energy
[Free Registration/Login may be required to access all resource tools.] When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. Every time energy is transferred from one organism to another, there is a...