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What is a classification system based on external characters like form and color called?

Answer and explanation

Correct answer: Artificial system

Correct answer: B, artificial system. An artificial classification system uses a limited number of easily observed characters, such as form, colour, size, or habit. The word “external” and the focus on only a few visible traits are the key clues. A is wrong because a natural system considers many characteristics, including internal and reproductive features, to show broader similarities. B is correct because the selected characters are simple and limited. C is wrong because a phylogenetic system is based on evolutionary history and common ancestry. D is wrong because a molecular system uses molecular or genetic evidence rather than visible form and colour. Memory cue: few visible characters means artificial; many overall characters means natural.

Related tags

Artificial ClassificationNatural SystemPhylogenetic SystemExternal CharactersBiodiversityAnd Classification SystemsBiodiversity And Classification SystemsThe Living WorldBiology

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