A blood test measuring CK levels can help determine how injured his skeletal muscle is.
The first question is observation, you can't really collect samples on developing muscles or do any of the other things listed
for the second question the answer can vary from B to C...it is important to asses before and after to see how much was actually learned...depending on what the learning experience is, you may SOMETIMES want to asses in between to insure the child or adult is actually retaining information.
Answer:
Cut back on sleep so you have more time in the day for other responsibilities
