I believe you are asking about the "triangle" we were tought a simple triangle. Cells at the bottom because there are the most of them, tissues next, organ next, and organ system at the top. So I believe the answer you are looking for is Organ System.
Answer:
Cardio Fitness: Swimming, Running, Riding a bike, Jump-rope, Dancing, Riding a bike, Doing a variety of activities
Muscle strength: Jump-rope, Biking, Running
Muscle Endurance: Squats, Push-Ups, Jump-rope, Bicep curls with dimbbells,
Flexibility: Touching your toes, Sit-ups, Yoga, Doing a variety of activities
10-13 years normally.
Hope this helps, and good luck!
Answer:
b.) Athletes who are <em>younger than 19.</em>
Explanation:
This condition is called the Triad.
It is often seen in physically active girls and women. It is a syndrome that results from a relationship between<em> low energy availability with or without eating disorders, low bone mineral density and disfunction of menstrual cycle. </em>Not always all of the signs are present to diagnose <em>Female Athlete Triad.</em> It usually occurs in adolescent age ( between the age of 10 and 19), due to their skeletal immaturity and BMD. Early signs of this condition are:<em> weight changes, decreased energy and repeated injuries.</em> On the long term level, effects are: <em>low BMD, osteoporosis, suicidal thoughts, kidney failure, liver dysfunction...</em>
Many married teenagers drop out of school
