Helping out my church and helping out the people who are in need
Refers to the blood flow to and from the lungs
. oxygenated
pulmonary artery high blood pressure, elevated to over 140/90 (systole/diastole)
The reason why ethics differs when we're talking about people, companies, nations is that all of these have interests which may differ. What happens then with differing interests is that it also lead to different moral and value systems which again in turn lead to different ethics. Most usually, the actual source why ethics differ is either due to the interests or wishes of a particular social group mentioned here.