The brackets around a chemical formula represents or means the molar concentration of the given compound or element. For example; [H+] means the molar concentration of hydrogen ions, [H2O] means the molar concentration of water molecules, [NaCl] is the molar concentration of sodium chloride, and so forth.
I choose to list two. The two that form the basis are evergreens and broadleaf trees.
Alleles refer to the DNA!! So B!
Hyaluronic acid, <span>also called </span>hyaluronan.