Supplies the body with 4 calories per gram

Pam currently runs on a track an hour a day, three days a week. how can she increase the intensity of her runs? start running five days a week start running in hilly areas or trails switch to walking six miles each day add 20 minutes to each run

The outermost layer of your teeth is called the enamel and is made of?

Ais a person who demonstrates effective communciation, self-directed learning, critical thinking, and responsible citizenship