[BIOL 111] - Midterm Exam Guide - Everything you need to know! (12 pages long)
Document Summary
Bio 111 textbook exercise 1 biodiversity in chicago. For hundreds of millions of years, illinois was closer to the equator and was home to marine and near-shore habitats: evidence of marine environment can be seen in silurian limestone. During the last ice age, glaciers covered illinois: as the wisconsin glacier melted, it created the great lakes, it also shaped the surrounding terrain, giving it hills and valleys. According to early explorers, the area was incredibly biodiverse: illinois has less than 10% of its original prairie and wetlands. Agricultural practices were more destructive of the land than urban land usage. Communities are defined by the types of vegetation they contain: lake. Too deep for rooted plants, except near the shore. Emergent vegetation: cattails, water lilies, reeds, grasses. Waterfowl, frogs, beavers, turtles, dragonflies: prairie. Wet enough to support the growth of trees, but fires prevent their establishment. Organisms with adaptations to cling to surfaces. Aquatic insects, fish, mussels: sand dune.
