Answer:
Muscle contraction is defined at the molecular level by myosin molecules bringing actin filaments together.
Explanation:
Researchers at Osaka University have created new electron cryomicroscopy images with remarkable resolution that reveal unusually substantial conformational changes in the myosin molecule during the pull.
To make sure you are prepared for every outcome so if in the future if something goes unplanned you already somewhat expected it
Answer:
The answer is A which is true.
