A biochemist performs an experiment to study the behavior of water molecules near proteins. He concludes that water molecules occur in groups of five in the presence of proteins. Skepticism is important in this scenario because it would help him to

Skepticism means questioning a claim and checking whether the evidence supports it before accepting the conclusion. The biochemist should examine whether his results really show that water molecules form groups of five near proteins. Therefore, the best choice is “ensure that his conclusion is supported by evidence.”

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