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how did photosynthesis change the world?
- 20%of the earths oxygen
- aerobic respiration
- uv protection
causes the candleobra effect n red woods
- algea and a fungus
- fungus provides house for algea , algea does photosynthesis and provides food
interactions btw organism and environment
- terrestrial climatically controlled set of ecosystems characterized by distinctive vegetations
- ex:desserts, taiga
major factors affecting biome distribution
- 1 distributon of heat from the sun(the earth is tilted so not at all get direct)
- 2climate-air masses rise at equator and cool and lose water causing a rainforrest then the dry air masses come down at 30 degress causing deserts
- 3 mountains (shadow)
study slides of dif biomes
what do forrests do for us
oxygen,jobs, wind sheild, temperature/ albedo(ability of a surface to reflect light),habitats, prevents erotion/flood control, maintenance of water quality, improve air quality, recreational opportunity,aesthetics, pharmacuetical
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