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.
Valleys waterfalls floodplains meanders and ovbow lakes are 5 features
GIRL YOU GOTTA DOES THIS ON YOUR OWN BABY THIS IS TOO MUCH
Unlike fixed joints or cartilaginous joints, where bones are connected by either connective tissue or cartilage, the bones in synovial joins are not. Which makes them more flexible.
Answer:
I think the correct answer is A
Explanation:
Stress can be caused by the things around you and what happens in your personal life. But stress is not always caused by social and physical health. So I think it would be A because stress can have a part in your environmental health and mental health.
Hope this helps, good luck.
