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| 9683251392 | aerobic respiration | Respiration type that requires oxygen, converts organic compounds such as glucose (C6H12O6) to CO2 and water. | 0 | |
| 9683303379 | anaerobic respiration | Respiration type that does not require oxygen | 1 | |
| 9683303380 | photosynthesis | Plants convert atmospheric C (CO2) into complex carbohydrates. | 2 | |
| 9683305918 | Nutrients _______ within ecosystems | cycle | 3 | |
| 9685443815 | Macronutrients | Requires in large amounts by living things. | 4 | |
| 9685464220 | Micronutrients | Requires in small amounts by living things. | 5 | |
| 9685474367 | Nitrogen Cycle | know it | 6 | |
| 9685479759 | Nitrogen | moves between reservoirs rapidly | 7 | |
| 9687262468 | Nitrification | ammonia is converted to nitrate ions | 8 | |
| 9687272767 | Nitrogen Fixing | because atmospheric N cannot be used directly by plants it must first be converted into ammonia by bacteria | 9 | |
| 9687295115 | Role or Legumes in N Fixation | bacteria on roots of legume plants convert atmospheric nitrogen to ammonia | 10 | |
| 9687310277 | Ammonification | decomposers convert ammonia back into N | 11 | |
| 9687322534 | Assimilation | inorganic N is converted into organic molecules such as DNA/amino acids and proteins | 12 | |
| 9687340085 | Denitrification | bacteria convert ammonia back into N | 13 | |
| 9687351290 | Humans alter nitrogen cycle by | releasing NOx by burning fossil fuels, applying fertilizers | 14 | |
| 9687365789 | Largest reservoirs of C | carbonate rocks first, oceans second | 15 | |
| 9687376578 | Humans alter carbon cycle by | releasing CO2 through burning of fossil fuels, deforestation(carbon from trees to atmospheric CO2) | 16 | |
| 9687399291 | Effects of disrupting carbon cycle | too much CO2, global warming, too little, global cooling | 17 | |
| 9687412752 | Organic Compounds | compounds containing carbon (inorganic compounds don't contain carbon) | 18 | |
| 9687425474 | Phosphorus | moves between reservoirs slowly as it is tied up for long periods of time in rocks and does not have a gaseous phase, released by rocks by weathering | 19 | |
| 9687448484 | Phosphorus cycles slowly because | it lacks major gaseous phase in contrast to nitrogen and carbon | 20 | |
| 9687463004 | Humans alter the phosphorus cycle by | applying fertilizers | 21 | |
| 9687466452 | Phosphate | phosphorus bonded with four oxygen atoms | 22 | |
| 9687479454 | Organic Phosphate | organophosphate, phosphate bonded to an organic molecule | 23 |
