How do plant cell systems interact to allow the organism to survive?

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

Scientists who study the anatomy of the systems in the human body focus their studies on

Describe specific ways your friend can use frequency, intensity, time, and type to safely apply the overload principles to his workout schedule. provide two ways per training principle. sunday30-minute bike ride monday20 push-ups, 10 squats, and 20-minute jog tuesday30-minute bike ride wednesdayrest thursday20 push-ups, 10 squats, 25 curl-ups, and 20-minute jog friday30-minute bike ride saturdayone-hour walk