Thylascoid
Groups of similar organisms within a species are called populations. Populations consist of individuals of the same species that can interbreed and share a common geographical location.
Organisms in the same species have the most characteristics in common, as they are capable of interbreeding and producing fertile offspring.
The taxon that includes organisms that are most closely related is a species. Organisms within the same species share a high degree of genetic similarity and can interbreed to produce fertile offspring.
Subspecies are the smaller groupings within a species. It is below the rank of species. Subspecies usually are interbreed and isolated organisms.
Phylum. Organisms in the same class belong to the same phylum, which is a higher taxonomic rank that groups organisms based on shared characteristics.
Biological species consists of groups of populations. Populations are assigned to the same biological species based on their ability to interbreed and produce fertile (viable) offspring.
Organisms of the same species will share common traits.
They are members of the same species.
Organisms of the same species can mate and produce offspring.
a population
A subspecies is a distinct group within a species that has unique characteristics but can still interbreed with other groups of the same species. It differs from a species in that it is a more specific classification within a larger group of organisms.