Why is the structure of a nucleosome so important? A. It allows DNA to fit in the nucleus.
B. It helps the DNA exit the nucleus.
C. It tangles the chromatin.
D. It replicates the DMA.​

Hi, I'm going to say A since The DNA supercoils itself with the help of various proteins to get a compressed shape so that it can fit and be packaged inside the nucleus of the cell.

Please correct me if I am wrong :)

Have a nice day

Explanation:

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.