Which of the following is the balanced chemical equation for photosynthesis? a. 6h2o + 6co2 ® 6o2 + c6h12o6 b. c6h12o6 + 6o2 ® 6h2o + 6co2 c. h2o + co2 ® o2 + c6h12o6 d. c6h12o6 + o2 ® h2o + co2

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.