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Difficulty: EasyTaxonomy and Classification

If two different animal species are classified within the same taxonomic order, which other classification level must they also share?

  1. A
    Family
  2. ClassAnswer
  3. C
    Genus
  4. D
    Species

Answer

Class
In biological classification, ranks are organized hierarchically from broadest to most specific: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. Because an order is a subdivision of a class, any two organisms placed in the same order must necessarily belong to the same class.

Step-by-Step Solution

1
Recall the hierarchical arrangement of major taxonomic ranks from broadest to most specific.
The standard sequence is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Taxonomic levels form nested groups where higher ranks contain one or more lower ranks.
2
Determine whether shared membership in an order requires shared membership in higher or lower ranks.
Organisms grouped into the same order must belong to all broader categories above that order (Domain, Kingdom, Phylum, Class), but can diverge into different categories below it (Family, Genus, Species).
An order is a subgroup within a specific class.
3
Identify the option that represents a broader taxonomic rank positioned above order.
Class is the only rank among the options situated above order.
Family, genus, and species are all narrower divisions nested beneath order.

Key Concept

Taxonomic hierarchy and nested classification ranks
Estimated Time:45s
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Topics

Taxonomy and Classification

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