Standing is a safety issue in case of spills. Sitting exposes much more of your lap and gives a flat surface for acids to land on.
Acid. RNA = Ribonucleic acid.
Carbonic acid
LySergic acid Diethylamide aka acid
DNA does stand for deoxyribonucleic acid and you spelled it exactly right.
organic acid
Boric Acid
Adomine
dioxchangly acid
deoxyribonucleic acid
DNA - Deoxyribonucleic acid RNA - Ribonucleic acid
Ribonucleic Acid
Ribonucleic acid