B. Dennis. He should have asked the doctor to give her a shot, and not just done it.
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I believe the answer is a.
Answer:
11,286′
Explanation:
I'm guessing you mean the altitude since boiling point makes no sense.
I believe you are asking about the "triangle" we were tought a simple triangle. Cells at the bottom because there are the most of them, tissues next, organ next, and organ system at the top. So I believe the answer you are looking for is Organ System.