the bottom because layers get added as time goes on so whatevers on the bottom is the oldest
The properties of matter depend on which atoms are used and how they are bonded.
Answer: C) breaking down terminology
Explanation:
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).
