Chapter 13, Problem 1SQ

Place these levels of classification in order from least inclusive to most inclusive: class, domain, family, genus, kingdom, order, phylum, species.

Summary Introduction

To determine: The correct order of classification levels from least inclusive to most inclusive: class, domain, family, genus, kingdom, order, phylum, and species.

Introduction: Carolus Linnaeus proposed a scheme which became the basis for the taxonomy. Taxonomy is that branch of science which is used for the identification, naming, and classification of an animal. A hierarchy level is followed to classify animal. The hierarchy order of classification is: Kingdom, phylum, class, order, family, genus and species.

Explanation of Solution

Taxonomy helps in the classification of least inclusive groups into increasing wide categories. The order of least inclusive to most exclusive group is as follows:

• Species
• Genus
• Family
• Order
• Class
• Phylum
• Kingdom

Species is the least inclusive classification level as more than one species is included in a genus. For example, the genus Panthera consist three species the lion, tiger and jaguar. A genus is included in the family; families are put into orders, orders into different classes, classes into various phyla and different phyla into kingdom. Kingdom is the most inclusive level of classification as it includes various animal phyla.

Conclusion

The taxonomic classification is done by placing animals into systematic and broader category that has helped in clear understanding of different organisms and the world around us.