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Thinking Scientifically
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  1. A drug for leukemia is not broken down in the stomach and is well absorbed by the intestine. However, the molecular form of the drug collected from the blood is not the same as the form that was swallowed by the patient. What explanation is most likely interpretation?
  2. Snakes often swallow whole animals, a process that takes a long time. Then snakes spend some time digesting their food. What structural modifications would allow slow swallowing to occur and storage of a whole animal? What chemical modifications would be necessary to digest a whole animal?

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