Permafrost

King Table of Contents Title Page?????????????????????.??.....0 Table of Contents????????????????????.?.1 The Biosphere?????????????????????.......2 Species Niche???????????????????.??......4 Community Structures and Symbiosis among Species?????....?6 Primary and Secondary Succession?????????????......8 Energy through Ecosystems???????????????..?..10 Terrestrial Ecosystem????????????????.?.?....12 Aquatic Ecosystems???????????????????....14 Biochemical Cycles ??????????????????..?.16…