BIOL 2903- Final Exam Guide - Comprehensive Notes for the exam ( 59 pages long!)
5 Dec 2017
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Total # & variety of living things (flora & fauna) found in area. In some regions, deciduous trees, such as oak & maples = dominant. In other parts of ontario, coniferous trees = dominant: e. g. Large bodies of water modify land temperatures & winds. Continues to change face of ontario keeps flowing & moving. Evidence of its power in past in rocks: erratic rocks = boulders, striations (scratches) on rocks. Over past million yrs, ice covered all of ontario several times: ice age (the pleistocene) Isostatic rebound: when land masses that were depressed by weight of ice sheets during glacial period rise. Glaciers scoured rocks & destroyed all life in ontario. Only small drop in avg temperature can spawn glaciers. Mosses often grow w/ lichen, but they can also be colonizers (pioneer species) Lichens & mosses physically trap win-blown soil (loess) Water continues to break down rock & so do the plants.
