Logical fallacy is a flaw in the structure of a deductive argument which renders the argument invalid.
Answer
The logical fallacy is him saying "what more evidence do we need" when they have no evidence to suggest it is bad other than the statement that it is bad.
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Answer:
C. According to the author, “a shark’s teeth are constantly being replaced, moving forward along a groove in comparison to a conveyor belt.”
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Explanation: