Answer:
smoke inhaled involuntarily from tobacco being smoked by others.
Explanation:
B Juan is depressed. His father died suddenly last week.
The liver excretes excess cholesterol in bile
The oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. This blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. Hope this helped, have a goodnight!
Answer:
Blood travels through out the veins, and The heart is pushing the blood
Explanation:
Report this if u want idc that is what i think and makes more sense
