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Thinking Scientifically
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  1. For several years, researchers have attempted to produce an artificial blood for transfusions. Artificial blood would most likely be safer and more readily available than human blood. While artificial blood may not have all the characteristics of human blood it would be useful on the battlefield and in emergency situations. Which characteristics must artificial blood have to be useful and which would probably be too difficult to reproduce.
  2. You have to stand in front of the class to give a report and you are nervous. Your heart is pounding. How would your ECG appear?

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