Unit+2+Terrestrial+Ecology

=Unit 2- Terrestial Ecology=

**Unit 2 will cover many terms that are already familiar to you. We will be using Chapter 4 from our book to work through this unit.** There are 3 basic division to this unit;

**I. How are ecosystems organized and what factors are needed to sustain life on Earth** __Key Terms:__organism population community ecosystem biosphere abiotic biotic climate Law of tolerance limiting factor

__Key Terms:__ trophosphere and herbivores atmosphere and carnivores lithosphere and detritivores stratosphere and detritus hydrosphere and scavengers producers and decomposers consumers and biomass metabolism and the three types of ecological pyramids autotrophs and net / gross primary productivity
 * II. How does energy flow through an ecosystem **

__Key Concepts__: *the 4 nutrient cycles
 * III. How does matter flow through an ecosystem **