DNA replicated through a complex process. Many enzymes such as polymerase are involved in making new copies of DNA and transferring it to mRNA.
I would say that the nurse would have to intervene if the client say chose Campbell's soup as part of her diet as it is known to have high amounts of salt or crackers with salt on them or say savoury foods like stuffed olives.
D. Oxygen
It refers to the pathway by which a chemical element is moved through both the abiotic and biotic compartment of an ecosystem.