Oxygenated (arterial) blood is bright red, while dexoygenated (venous) blood is dark reddish-purple. The difference is color results from the electronic state of the iron ion (ferrous vs ferric), which in turn influences the π → π* and n → π* electronic transitions of porphyrin and hence its optical characteristics.
Hello!
Alcoholic Anonymous helps the people in need to cure alcoholism by encouraging alcoholics to commit themselves to sobriety by sharing their past experiences and future goals. AA meetings typically are women and men coming together for a session to share their feelings and experiences with each other, so they can be able to solve their problem of alcoholism. It's main purpose is to "stay sober and help other alcoholics achieve sobriety," according to the A.A. preamble.
Therefore, the answer is B.
Air is conducted/entered through the Bronchi. The trachea is the windpipe and is a passage way for air. The alveoli are the tiny sacs that help transport carbon dioxide and oxygen to and out from our lungs. D takes the blood and makes it de-oxygenated I think. The best answer would be A.
Answer:
A Brain Surgeon
Explanation:
Having to deal with the most important and complex part of the body requires almost a doctorates degree, which is the absolute highest. The brain is very complex and has so many vital parts, meaning everything you do during surgery is as equally as important as the other. This Job requires intense study and preparation.