Other
College of Du Page: Energy in an Ecosystem
Ecosystems contain two kinds of commodities: matter (nutrients) and energy. Nutrients cycle through the ecosystem, available for repeated use by organisms. These cycles of use and reuse are called biogeochemical cycles. Energy instead is...
Sophia Learning
Sophia: Energy Pyramids: Lesson 2
This lesson will introduce energy pyramids, and show how energy moves from one trophic level to the next. It is 2 of 4 in the series titled "Energy Pyramids."
CK-12 Foundation
Ck 12: Biology: Trophic Levels
[Free Registration/Login may be required to access all resource tools.] Describes how to identify trophic levels in a food chain or food web.
BBC
Bbc: Gcse Bitesize: Organization in Ecosystems
This lesson focuses on food chains in ecosystems, including levels of consumers, decomposers, and a list of common words used with food chains and their definitions. It also provides a link to an assessment.
Open Curriculum
Open Curriculum: Flow of Energy in Ecosystems
Students will understand and describe food chains and food webs, and explain how energy is transferred between their trophic levels.
Sophia Learning
Sophia: Energy Pyramids: Lesson 3
This lesson will introduce energy pyramids, and show how energy moves from one trophic level to the next. It is 3 of 4 in the series titled "Energy Pyramids."
Sophia Learning
Sophia: Energy Pyramids: Lesson 1
This lesson will introduce energy pyramids, and show how energy moves from one trophic level to the next. It is 1 of 4 in the series titled "Energy Pyramids."
Tom Richey
Slide Share: Energy Flow and Nutrient Cycle
Read 37 slides on energy flow and the nutrient cycle.
Science Struck
Science Struck: Tropical Rainforest Energy Pyramid and Its Importance
Explains the roles of consumers, producers, and detrivores or decomposers and how energy flows through the different levels of the energy pyramid of a tropical rainforest.
Science Struck
Science Struck: Food Chain in the Tundra Region
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.
BiologyWise
Biology Wise: An Analogy: Biomass Pyramid vs. Energy Pyramid
Explains what biomass and energy pyramids are and provides a table highlighting their differences.
Other
S Cool: Engery Flow and Nutrient Cycle
This website describes trophic levels, transfer of energy between trophic levels, pyramids of ecology, and nutrient cycles within the environment.