AP Biology Section Ten

Lesson 21-Ecosystems and Biospheres

Read chapters 45 and 46 in textbook

Complete lesson 21 reading assignment

Watch lesson 21 video lecture

Watch “Ecosystems,” take Cornell Notes

http://www.bozemanscience.com/047-ecosystems

Watch “Ecosystem Changes,” take Cornell Notes

http://www.bozemanscience.com/051-ecosystem-change

Watch “Ecological Succession,” take Cornell Notes

http://www.bozemanscience.com/ecological-succession

Watch “Environmental Matter Exchange,” take Cornell Notes

http://www.bozemanscience.com/014-environmental-matter-exchange

Watch “Biochemical Cycling,” take Cornell Notes

http://www.bozemanscience.com/biogeochemical-cycling