simulate a 24-hours day (12 hours of light, 12 hours of dark). How many snails and plants do you need to keep a stable enviroment

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.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;