Answer:
They use spores to reproduce.
Explanation:
Answer:
The Doctor cross references to find another drug to take the place of the on that causes the side effects.
Explanation:
Answer:
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If Obama is a choice, then that would be your answer.
Answer:
A market for cats would have had a positive externality.
Because the cats would kill the rats on sight since that is their natural behavior.
However, it is interesting to mention, that the cat's killing has been more of a "mythic" aspect of this story, since it fails to take into account that since the black death was caused by the<em> yersinia pestis</em> bacteria, cats could have been also infected, and since their interactions with humans are greater than rats or fleas, the real outcome could have been totally unexpected.
