In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Answer:
Its snacks I'm pretty suree
I believe you meant creatine instead of creating? The answer is that Creatine<span> is an organic acid that plays a key </span>role<span> in supplying energy for muscle cells during intense activity. </span>Creatine<span> is produced naturally by the </span>body<span> and found in small quantities in animal products. </span>Creatine<span> stored in muscle cells helps produce ATP, which is the primary energy currency in the </span>body<span>.</span>
