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.
Hello Tam121!
The correct answer to your question is false, because estrogen is any group of steroid hormones that promote the development and maintenance of female characteristics of the body. Unlike estrogen, steroids force your body to create testosterone, which has two main effects on your body: Anabolic effects (promote muscle building), and androgenic effects (responsible for male traits, such as facial hair and a deeper voice).
Hope this will help you out!
Answer:
A but in ny school we do it at 14 and 6 months so :|
D
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