1) Arm abduction and rotation. 2) Prime mover to protract and hold the scapula against the chest wall; rotates scapula so that its inferior angle moves laterally and upward. 3) A muscle that has its origin on the manubrium of the sternum and medial portion of the clavicle, and its insertion in the mastoid process of the temporal bone. 4) Coracobrachialis.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

what's the question ?

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.