The correct answer is D. All of the above.
Soil compaction is termed as the compression of particles of small to small volume which are then reduces their pore space size which is being available for water and air.
Soil compaction can result from;
1. Elimination or reduction of pore space in soil.
2. Heavy weight machine on soil.
3. Livestock walking over the soil.
Soil compaction can result to decrease in crop production and increase in erosion of soil.
T he purpose of the soil compaction is that large water pressure which is build up and causes soil liquefy in the time of earthquake.
I think that it would be classified in the prokaryotic domain.
I found the whole exercise with the options for it. Here are the options:
"A. mobility and protection of the DNA molecule during mitosis.
B. prevention of ligase enzyme action during replication.
C. Both answers regarding DNA mobility, protection and regulation in mitosis and transcription are correct.
D. regulation and protection of the DNA during transcription.
E. ensuring that sister chromatids will be attached prior to replication."
Correct answer: C.
Both A. and D. are correct reasons for what is the value in packaging DNA in tighter forms of chromatin. By having a more compact DNA it is easier to move it and protect each bit of it as it is being processed during mitosis, going from one side to the other, separating sister chromatids, etc. Also, by compacting and releasing DNA it is easier to regulate and protect DNA as it is being expressed - the parts that are being transcripted are not packed while those that are not being transcripted are packed.
All DNA of creatures is made from the same materials, and is largely the same. (Humans are less than 5% different than primates genetically)