Question 30

The second part of an organism's scientific name is the species.

The scientific name of an organism is comprised of two parts: the genus and the species. Thus, the second part specifically refers to the species.

A) species

This option is correct because, in the binomial nomenclature system established by Carl Linnaeus, the second part of the scientific name identifies the species to which the organism belongs. It provides essential information for classification and differentiation among organisms.

B) phylum

Phylum is a taxonomic rank that is higher than species in the biological classification hierarchy. It groups together organisms that share certain characteristics, but it is not the second part of an organism's scientific name.

C) population

Population refers to a group of individuals of the same species living in a particular area. While it is an important ecological concept, it does not pertain to the binomial naming system, making it an incorrect option in this context.

D) kingdom

Kingdom is another higher taxonomic rank that categorizes organisms above phylum. Like phylum, it does not serve as the second part of an organism's scientific name and is therefore incorrect.

Conclusion

The species is definitively the second part of an organism's scientific name, as established by the binomial nomenclature system. All other options, including phylum, population, and kingdom, represent different taxonomic ranks and are not relevant to the naming convention that specifies the second part of a scientific name.