4= very brisk, hyper active w/ clonus, indicative of disease
3= brisker than average, may indicate disease
2= average, normal
1= diminished, low normal
I think you mean sperm cell. It is called fertilization.
C is not a tip! You should never go alone in case of an emergency!
<span>As an action potential reaches a muscle cell, it triggers calcium to release from the sarcoplasmic reticulum of the cells. The calcium ions then flow into the cytoplasm and bind to the troponin and tropomyosin molecules in the actin filaments of the muscle cells.</span>