Section: Science

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How are viruses and bacteria an example of Darwin's natural selection theory at work?

1. Viruses and bacteria are able to adapt to outside threats and continually propagate for maximum effect.
2. Viruses and bacteria are not living things.
3. Viruses and bacteria can actually be good for mankind.
4. None of the above.

Since the theory is all about adapting to survive, it is the only choice that reflects that.