What is the difference between populations and communities? O Populations are of the same species in an area, communities are different species within an area
O Populations are different species, communities are of the same species
O The only difference is how the individuals cooperate with each other or not in the same species
O The only difference is how individuals cooperate or not between different species

b

Explanation:

it's kind of a trick question but im pretty sure this is the answer

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.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;