Answer:
deductive reasoning
Explanation:
According to my research on different types of reasoning tactics, I can say that based on the information provided within the question this statement is an example of deductive reasoning. This is the process of coming up with a fact or solution based on one or more different statements. Like in the situation in the question you deduced that snakes have a backbone by combining the facts that snakes are vertebrates and that fact that all vertebrates have backbones.
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