I would say the nerve tissues because the nervous system is vital in our actions and postures
I think it was <span>Rosalind Franklin who discovered what DNA was made up of.
</span>James Watson and Francis Crick discovered the double helix shape of DNA and also created a 3d model of it, so it's not B nor C.
To my understanding (you should double check) the answer is D
Thee answer is (deposition of sediment).
"A nephron is used to separate water, ions, and small molecules from the blood, filter out wastes and toxins, and return needed molecules to the blood."
https://biologydictionary.net/nephron/