Toxicology is the study of poison on living things
The answer is Ne. All of the other answers are either solids or liquids. Kr is a gas and so is Ne.
The answer is left to right shunt
Ductus arteriosus is a vessel that connect the pulmonary artery with the aorta. Normally, ductus arteriosus will be closed to prevent backflow. Patent ductus arteriosus happens when it doesn't closed.
Since aorta pressure is higher than pulmonary, left to right shunt will be happens. The blood that flow to the lungs will be increased while blood flow to the systemic decreased.
Hey!!! I'm late but it's Homozygous
