BIO 105 1st Edition Lecture 1 Biology- Study of life Biosphere- sum total of the places in which organisms live (all the ecosystems) Abiotic Factors Vs. Biotic Factors• Abiotic Factors (nonliving)- Solar energy, water, temperature, wind, and disturbances• Biotic Factors (living)-predation and competition The Atmosphere• (Outer) Mesosphere• (Middle) Stratosphere-ozone layer • (Inner) Troposphere- where air is warmed=greenhouse effect (“T”-Trees **)**helpful way to remember which is closer**Also can remember it in alphabetical order from the outer layer to the inner layer Ozone Thinning• Early spring and summer ozone layer over Antarctica thins Climate-average weather condition in a region• Affected by: amount of incoming solar radiation prevailing winds elevation Industrial Smog- Gray Smog ** When you think of a factory building it is usually described to be a gray colored building, the smog that comes out of the industrialized building is also gray • Cities that burn large amounts of coal and heavy fuel oils• Main component: Sulfur OxidesThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Photochemical Smog- Brown Smog• Automobile exhaust• Important component: nitrogen oxide Freshwater Biomes• Eutrophic-shallow, nutrient rich; has high primary productivity**”E” for excellent , because it is nutrient rich and has high primary productivity**”E” comes before “O” in the alphabet; when you walk from the outer to inner part of the lake it is shallow to deep• Oligotrophic- Deep, nutrient poor; has low primary productivity**”O” comes after “E” in the alphabet; when you walk from the outer to inner part of the lake you get to the deep part AFTER you go through the shallow part Effect on species number moving from equator- fewer Tundra• Arctic- permafrost lies beneath surface• Alpine- no underlying