As our climate changes , what is the impact on birds that migrate? A: Flying further South.

B: Flying further North.

C: Flying further West.

D: Flying further East.

just go with your heart buddy

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.

d. organisms have cells with different shapes and functions.

i got you i did it ya know what it is just needing to fill this in for a quick task!