Solution:
The genetic material dna consists of basic subunits called Nucleotides.
Nucleotides are the subunits of DNA. The four nucleotides are adenine, cytosine, guanine and thymine.
To see if they remember what they had that morning (to determine whether they have long term or short term memory loss)
Establish a hyperosmotic interstitial medullary concentration
Please refer the attachment for the correct answer