An experiment is set up to investigate gas exchange in aquatic plants. The hydrogencarbonate indicator solution is orange at the start
Which colour is it after three hours?

A. blue-black
B. orange
C. purple
D. yellow​

c because they are you all that you want to be like

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.

hammurabi rulers

good lesson