nutrients - correct answer Phosphorus, nitrogen and other constituents that promote plant and algal growth that if excessive can lead to lake degradation. temperature - correct answer This water quality factor is critical for many fish and other types of aquatic life. Warming may reduce or inhibit some fish from reproducing or thriving in a lake. habitat - correct answer The water or shoreline conditions need to be suitable for fish and aquatic life to live. If lake shores are developed it may eliminate the native vegetation and reduce the quality of this factor. Peter Sorensen mentions that walleye, a popular game-fish, are threatened with displacement from Wisconsin lakes because of what factor? - correct answer warmer temperatures According to Dr. Blann's talk on the Earth's Great Lakes, freshwater forms of life are more threatened than terrestrial forms of life. - correct answer True Over 2000 species in the African Great Lakes region are considered endemic, which means what? - correct answer They are only found in that region The world's Great Lakes in Africa, North America and Lake Baikal contain how much (as a %) of the world's freshwater when added altogether? - correct answer 72 The invasive "Crown of Thorns" that damages coral reefs is what type of organism? - correct answer starfish
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