The drug digoxin increases the concentration of intracellular calcium ions in cardiac muscle cells. Select what effect you would see.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

your spelling is a little off : ]

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.