Use the figure below to review the reactants and products of photosynthesis and respiration. with respect to carbon dioxide and oxygen concentrations, what trends would you expect to see in the epipelagic vs. the mesopelagic zones? why? the diagram shows the processes of photosynthesis and respiration. water, sunlight and carbon dioxide are shown entering the chloroplast and oxygen along with glucose passing into the mitochondrion where glucose then turns to energy and heat. a. i would expect to find equal concentrations of oxygen and carbon dioxide in the epipelagic and the mesopelagic zones because these zones are always well mixed. b. i would expect to find higher oxygen and lower carbon dioxide concentrations in the epipelagic zone because this is the well-lit zone in which photosynthesis occurs. c. i would expect to find lower oxygen and higher carbon dioxide concentrations in the epipelagic zone because this is the zone in which the majority of photosynthesis and respiration occurs. d. i would expect to find lower oxygen and lower carbon dioxide concentrations in the epipelagic zone because because this is where the majority of cellular respiration takes place.

the correct answer would be b. i would expect to find higher oxygen and lower carbon dioxide concentrations in the epipelagic zone because this is the well-lit zone in which photosynthesis occurs.

the epipelagic zone refers to the surface layer of the ocean and thus, it receives plenty of sunlight.

due to ample amount of sunlight the rate of photosynthesis would be high and thus, the amount of oxygen produced would be high.

in addition, the amount of oxygen consumed in cellular respiration is less than the amount of oxygen released by photosynthesis.

thus, the amount of oxygen would be high and that of carbon dioxide would be less in epipelagic zone.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

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.