A little trick i learnt: The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, Thallium
A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.
I am not exactly sure but I would gn with protein because DNA does not look like that is how the cell is so maybe protein or starch
Y=-(x^2-20x+64)
----find two numbers that multiply to 64 and add to -20. They are -16 and -4--
y=-(x-16)(x-4)
ROOTS : 16, 4