Will give brainliest to correct answer the circulatory and respiratory systems interact to maintain homeostasis by a. blood plasma transporting salts, sugars, fats and dissolved proteins through the body. b. the coordination of the diaphragm and rib cage moving air into and out of the lungs. c. the collection and return of fluid from the lymphatic system that leaked from the blood vessels. d. blood cells picking up and carrying oxygen from the lungs to the body's cells.

the aswer is letter c

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.