Researchers argue that some bacteria found in the human gut are in a symbiotic
relationship with humans, called mutualism. Which of the following observations is
consistent with this argument?
A Bacteria increase the risk of cancer in humans.
B Bacteria do not cause disease in humans.
C Bacteria provide vitamins to humans.
D Bacteria and humans both use the same nutrients
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Researchers argue that some bacteria found in the human gut are in a symbiotic
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