Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: You call the hard case that surrounds the soft parts of some animals the exoskeleton.

Answer: What do you call the hard case that surrounds the soft parts of some animals?


Question: Six many neutrons do 99% of carbon atoms have.

Answer: How many neutrons do 99% of carbon atoms have?


Question: An organism that carries pathogens from one individual to another is called a vector.

Answer:
An organism that carries pathogens from one individual to another is called what?