Both prokaryotes and eukaryotes use DNA to control cell activities and carry genetic information. Which is a property only of eukaryotic DNA, and not prokaryotic DNA? A. The DNA contains genes, or coding regions, that direct protein synthesis.
B. The DNA is contained on many chromosomes that are separated during mitosis.
C. DNA is made of nitrogenous bases that pair together according to Chargaff's rules.
D. The DNA forms a circular molecule in the cytoplasm and is replicated with only one replication fork.

the answer is a or when it says crossing over

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

it is because according to the process , scientific inquiry is a process with many steps because each step occurs to the scientist and if you just skip a step there would be no steps to scientific inquiry.