<span>tympanum Im preatty sure</span>
D. think of it like a current!
electron -> electron-> electron->
a nitrogenous base, a sugar, and a phosphate. A nucleotide is the basic subunit of both DNA bad RNA. It contains a base with nitrogen, a 5-carbon sugar and a phosphate group.
Human Immunodeficiency Virus causes HIV
Varicella Zoster Virus causes chicken pox
