Blood in the pulmonary vein is oxygen rich, while in all of the other veins, it is oxygen poor.
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Endoscopes can be passed into the large intestine (colon) through the rectum to examine this area of the intestine. This procedure is called sigmoidoscopy or colonoscopy depending on how far up the colon is examined.
The answer is the first one. It is the most realistic out of the four answers.
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Answer:
Spitting a lot. Always moving
Explanation:
Wrestlers spit before weigh-ins to help them lose that extra couple of ounces to meet weight.
Crusty breads is the answer
