Question

Identify the correct sequence of taxa in Linnaean hierarchy.
A. Species, genus, family, order, class
B. Class, family, species, genus, order
C. Phylum, class, family, species, order
D. Species, genus, phylum, family, class

Answer 1

Hint: The taxa include hierarchical ranks to classify organisms in different categories. Firstly organisms are classified in a larger group that is named kingdom or domain. Species is the smallest group which includes closely related organisms that can produce offspring. The taxonomy includes certain levels in between kingdom and species that are phylum, class, order, family and genus.

Complete step by step answer: Classification plays a very important role in studying millions of species. Taxonomy is the science of classifying organisms. It also helps in understanding present diversity and past evolutionary history life on the earth. Linnaean classification is the root of all modern classification. Swedish botanist Carolus Linnaeus developed this in the 1700s. He grouped organisms together which have similar physical traits.
 Taxa are the range from kingdom to species. Kingdom is the largest group. It includes organisms that share basic similarities. Plant and animal kingdoms are examples of it.
Phylum is the taxonomic rank below kingdom; animal kingdom includes 35 phyla while plant kingdom contains about 14 phyla.
Class is the group of organisms that share common attributes. It is further divided into one or many orders. Family is the classification of organisms between order and genus and it is further divided into subfamilies.
Genus includes closely related species. Species are the smallest group. It includes organisms that are similar enough to produce offspring together. For example: Breeds of dogs come in species.
The correct sequence of classification is Kingdom-Phylum-Class- Order-Family-Genus-Species.
Therefore the correct answer is option A.

Note: Classification of human species: kingdom- animals, Phylum- Chordata, Class- Mammals, Order- Primates, Family- Hominids, Genus- Homo, Species- Homo sapiens. Linnaeus also gives a method for the naming of organisms that is known as binomial nomenclature. This classification tells the biochemistry of organisms. New largest group is also found that is named as Domain.