Question

homework - cladograms and phylogenetic trees
which classification groups provide the most specific information about an organism?
○ kingdom and phylum
○ kingdom and genus
○ phylum and species
○ genus and species

Explanation:

In biological classification, the hierarchical levels are Kingdom, Phylum, Class, Order, Family, Genus, Species. As we move down the hierarchy, the classification becomes more specific. Genus and species together (binomial nomenclature) give the most specific information about an organism. For example, Homo sapiens (where Homo is the genus and sapiens is the species) specifically refers to human beings. Kingdom and phylum (e.g., Animalia - kingdom, Chordata - phylum) are very broad categories. Similarly, phylum and species combination is not as specific as genus and species. Kingdom and genus is also a less specific combination compared to genus and species.

Answer:

genus and species