Examlex
Which of the following expressions is not equivalent to the formula of pH?
Striations
Parallel lines or grooves on a surface, often found in muscle fibers and certain crystals.
Myofibril
A long, slender contractile structure within muscle cells, composed of repeating units called sarcomeres, which are responsible for muscle contraction.
Actin
A protein that forms (together with myosin) the contractile filaments of muscle cells and is also involved in motion in other types of cells.
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