I couldn't find the answers anywhere XD So I took it upon myself so nobody has to deal with this again ;-;

1. There is no real art to sitting
B) False

2. Newton's _____ can be applied to strength training
A) Third law

3. Your body produces chemicals in the brain called _____, which serve as a natural painkiller and can improve your ability to sleep
C) Endorphins

4. _____ made some unbelievable progress in understanding the human body and ultimately changed the way the body was understood.
C) Leonardo da Vinci

5. Researchers in the field of biomechanics discover new and effective ways to perform a skill or a sport based on their analysis of _____.
C) Body movement

6. Michelangelo discovered the four chambers of the heart, the workings of the aortic valve, and how the cone shape of the heart assists in its functions.
B) False

7. Posture is a good indicator of _____.
B) Strength

8. The most important concept in mechanics is _____.
B) Posture

9. _____ can place the greatest stress on your lower back, so be careful when doing this.
B) Lifting

10. _____ has been shown to be the most effective way to decrease overall tension, stabilize moods, improve strength and cardiovascular health, and lose weight.
D) Performing regular aerobic exercise

11. Which of the following is considered proper gym etiquette?
B) Wiping down equipment when finished

12. _____ looks at how a system (or body) in motion moves with respect to time, velocity, and speed.
B) Kinematics

13. Endorphins serve as a natural painkiller and improve you ability to sleep.
A) True

14. _____ allows you to fully appreciate and better understand your body's needs.
D) Mindfulness

15. Fitness goals are easily attained and not something that must be a lifelong pursuit.
B) False

so you want to deprive others of the chance to study and learn as you did?

Fie on thee sirrah!