Answer:
Sarcomeres are functional units of skeletal muscle fiber.
Explanation:
Hope this helps!
C) Occurs in areas without soil.
Primary succession occurs in lifeless areas in which <span>soil that is incapable of sustaining life is formed due to lava, sand dunes, and </span><span>rocks left from a retreating glacier.</span>
It’s not B or C. I want to say A but I’m not 100% sure