during a experiment, if i give a group of people a drink always 30 minutes before a basketball match, would it be a control variable? if not what would be an example of a control variable in the experiment?​

not too sure maybe olecranon process

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.