Answer:
D
Explanation:
myosin heads form cross bridges and pull thin filaments causing them to slide.
the presence of acetocholene causes calcium to be released causing depolarization of the sarcoplasmic reticulum and changing its shape. the myofilaments together with actin allows the myosin to form cross bridges along the muscle fibers and releases ATP for movement of the muscle.
1. Protects human health and environmental safety
2.sets and monitors food packaging and labeling
3. Regulates policies for agriculture and forestry
Answer:
oral medicine
Explanation
about the only way I can think of.