What is the max heart rate for a 21 year old

John is jogging on a winter day. the outdoor temperature is 31° f. yet his body temperature is 98°f. which term best describes the process causing this difference in temperature?

Amino acids are important to the body because they build carbohydrates proteins complex carbohydrates simple sugars fats

When were the first laws enacted in the united states to protect farm animal from cruel treatment? select one or more: a. 1480 b. 1792 c. 1828 d. 1886