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What do the changes in classification systems over time indicate?

Answer and explanation

Correct answer: Advancement of scientific understanding and technologies

Correct answer: B, advancement of scientific understanding and technologies. Classification systems are revised when scientists obtain new evidence or develop better methods for comparing organisms. The reasoning is sequential: early systems relied largely on visible traits; later studies added anatomy, cell organisation, fossils, biochemistry, and molecular evidence such as DNA comparisons. A is wrong because revision is a normal strength of science, not a failure. B is correct because knowledge becomes more detailed and accurate. C is too narrow; changes do not simply mean that one scientist was wrong. D is wrong because evidence-based revision reduces confusion. Memory cue: science updates models when evidence improves.

Related tags

Classification SystemsScientific EvidenceDna AnalysisBiological ClassificationBiodiversityAnd Classification SystemsBiodiversity And Classification SystemsThe Living WorldBiology

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