28. Which of the following structures
would be found in abundance in the
cells of the leg muscles of a sprinter?
A. Cell membrane
B. Cytoplasm
C. Mitochondria
D. Nucleus

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

what about it?

is this a ?

measured, submerged.

answerbacterium;