One month ago, a teenage girl stopped eating animal derived foods and now only consumes vegetables and fruits. She is now experiencing other a cold and/or an infection. This is probably due to inadequate protein intake for:.
a) synthesizing antibodies.
b) maintaining blood pH balance.
c) maintaining tissue fluid balance
d) proper hormone regulation

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