D. strings because if you have a ¨concert band¨ with strings in it then it is called an orchestra.
Answer: nucleotides and monosaccharides are both monomers of macromolecules (nucleic acids and carbohydrates)
Explanation:
Nerves - transmit impulse of sensation to brain or spinal cord, then to muscles and organs
I believe the correct answer would be metabolism. This comprises all of the reactions inside organisms that allows them to sustain life. There are two categories of such namely, anabolism and catabolism. Hope this answers the question.