Answer:
carries oxygen and nutrients to all parts of the body
removes carbon dioxide
removes waste from cells
Explanation:
Answer:
Ways to fill 60 minutes
30-minute bike ride plus 30 minutes of free play (e.g. climbing trees, playing on the monkey bars, playing tag with friends) 60-minute basketball, volleyball, hockey, or soccer practice (assuming the practice is well organized and the kids are not simply standing around for long periods)