Ecosystems | Lesson 3 - Matter Cycles and Energy Flows …
Lesson 3: Matter Cycles and Energy Flows in Ecosystems
By considering ecological systems as "open" rather than "closed," and by allowing for continual inflow and outflow of materials, energy, and organisms, one can partially overcome this difficulty and the community concept can be quite useful.
126.96.36.199 Cycles & Energy Flow | SciMathMN
Global estimation of the required N-Entropy and Energy flow could be estimated for a particular subsystem on Earth or for whole Earth and compared with available N-Entropy and Energy flow for a particular region.
Matter and energy flow recycling 1
In Activity 3.5 students use the Explanations Tool for Ecosystems to explain the reason for the key pattern in this unit: the biomass pyramid. Students use their knowledge of energy flow and matter cycling to explain why the producer pool has more organic matter than the herbivore pool, and why the herbivore pool has more organic matter than the carnivore pool.
Energy & Matter: Flows, Cycles and Conservation
In Lesson 3 students develop complete explanations for what causes the organic matter pyramid, the key pattern in ecosystems they examined in Lesson 2. Using carbon pools as a context, students trace matter through representations that connect carbon-transforming processes at the atomic-molecular, organismal, and ecosystem scales, and they consider the differences between matter cycling and energy flow through ecosystems.