BIOA02H3 Chapter 56: Ecosystem Ecology

• School: UTSC
• Department: Biological Sciences
• Course: BIOA02H3
• Professor: Kamini Persaud

Document Summary

earth is a open system with respect to energy: matter cycles through the system in a closed system. never comes back in a form to be used again. earth is a closed system with the respect to energy: energy, the source that drives the cycle, primarily comes from the sun, drives everything on earth, is usually lost as heat, drives the matter in the cycle. the drive is usually cyclic: energy is from the sun, and radioactive decay, the physical environment can be divide into 4 compartments whose organisms are very different, ocean. most materials that cycle through the earth end up in the ocean. ocean can only exchange materials at with the atmosphere only at the surface: can"t cycle with materials at the bottom of the ocean. materials cycle through slowly, materials stay in the ocean for a long time. Biology ii: fresh water( rivers, lakes, groundwater)