The main responsibility of the endocrine system is to regulate the body's growth and development, so I think your answer would be "create growth spurts in teen boys"
Hope this helps!
Answer:
A
Explanation:
All humans die eventually thefore 100% no human has ever not died
Answer: D) Muscle length
Explanation:
Muscle length determines its ability to produce enough strength for the task that requires it. This is so because, in human anatomy, the muscle has various types of muscle fibers. Some are longer and others are shorter. However, the optimal distribution of these fibers over the muscle (that is, that their different lengths are balanced) will make it possible to concentrate the necessary force.
