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    Biology
  3. Study Set
    Principles of Life
  4. Exam
    Exam 19: Bacteria, Archaea, and Viruses
  5. Question
    Viruses Are Thought to Have Evolved
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Viruses Are Thought to Have Evolved

Question 49

Question 49

Multiple Choice

Viruses are thought to have evolved


A) only once in evolutionary history.
B) from escaped genomic components.
C) from reduced cellular components.
D) only twice in evolutionary history.
E) Both a and b

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