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Difficulty: MediumTaxonomy and Classification

A museum curator is cataloging marine invertebrate specimens according to standard Linnaean hierarchy. Arrange the following taxonomic ranks in order from the most inclusive (broadest) rank to the least inclusive (most specific) rank.

  1. 1Phylum
  2. 2Class
  3. 3Order
  4. 4Family
  5. 5Genus

Answer

Phylum → Class → Order → Family → Genus
The correct sequence from broadest to most specific among the provided choices is Phylum, Class, Order, Family, and Genus. A common mnemonic for recalling the full biological hierarchy (Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species) is 'Dear King Philip Came Over For Good Soup.'

Step-by-Step Solution

1
Identify the most inclusive rank among the provided list
Phylum is the highest and broadest category listed.
In the standard biological classification system, Phylum groups together related classes.
2
Sequence the intermediate taxonomic ranks descending in order of specificity
Class is followed by Order, which is then followed by Family.
Phyla are subdivided into classes, classes are subdivided into orders, and orders are subdivided into families.
3
Identify the narrowest (most specific) rank among the options
Genus is the final and most specific rank in this sequence.
Families are subdivided into genera, making Genus the least inclusive category listed.

Key Concept

Linnaean taxonomic hierarchy order
Estimated Time:45s
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Topics

Taxonomy and Classification

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