I think the circulatory system is the best body system because we need the heart to stay alive, many people live with only one lung. but we need the respiratory system to let oxygen in, and let carbon dioxide out.
Use a foam roller and/or stretch.
Answer:
because a glizzy gobbler has to gobble the glizzy all the time or else they aren't a glizzy gobbler anymore and thats the last thing a glizzy gobbler wants to happen.