Why do we break the body into “systems” when discussing it? why don’t we just talk about the entire body all at once?

What would happen if you ate the number of calories of someone who is much taller and more active than you are?

What is offensive interference in basketball

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above