PDS AP Environmental Science 5th Period 2010-11

Today I elaborated on some good examples of keystone species (population control and engineer type) as well as introducing the term foundation species…this short slide show goes with the handout you can download from “the box.” Keystone and Foundation Species View more presentations from Derrick Willard.

Today’s class was dedicated to ecology. We started class by defining the levels of life. Here is what we found (most inclusive is on the top and least inclusive on the bottom): 1. Biosphere: the sphere of life 2. Biome (*place): many different types of ecosystems; ex: desert, rainforest 3. Ecosystem: Place and community (and [...]