Look at your results from the Punnett square in the previous item (that's ). Suppose that B is the dominant trait and b is the recessive trait. What are the chances that the offspring of these two parents will display the recessive trait?

1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low