Science >> Biology for Kids. Muscles are how we move and live. All movement in the body is controlled by muscles. Some muscles work without us thinking, like our heart beating, while other muscles are controlled by our thoughts and allow us to do stuff and move around. There are over 650 muscles in the human body.
Send Feedback. Caffeine Free Coke is the same in every way to Coca-Cola classic except it contains no caffeine. There is also caffeine free versions Diet Coke and Coke Zero for those that love the taste of Coke, but don't want the caffeine.
Coke Zero contains 34 milligrams of caffeine per 12 ounce serving. In comparison, an 8-ounce cup of brewed coffee contains 108 milligrams of caffeine.n addition, they both contain caffeine and between 1 to 4 calories per can -- anything under 5 calories does not need to be reported on nutrition label -- and are fat-free, protein-free, and carb-free. Both Coke Zero -- and Diet Coke -- contain caffeine, unless you buy the caffeine-free version of the beverage.