What do muscle fibers need to do to enable movement?
Bend strength exercise ligt It expands shorten Vibrates stay warm
A B C D E F G H
Movement is based on the contraction of muscles.
Movement happens when muscle fibers get shorter.
What do muscle fibers need to do to enable movement? (A) Bend (B) strength (C) exercise (D) ligt (E) It expands (F) shorten (G) Vibrates (H) stay warm