Dogs (canis lupus familiaris) and gray wolves (canis lupus) can interbreed to produce viable, fertile offspring. these species shared a common ancestor recently (in geologic time) and have a high degree of genetic similarity, although their anatomies vary widely. judging from this evidence, which two species concepts are most likely to place dogs and wolves together into a single species?
a) ecological and morphological
b) ecological and phylogenetic
c) morphological and phylogenetic
d) biological and morphological
e) biological and phylogenetic

The two species concepts that are most likely to place dogs and wolves together into a single species are biological and phylogenetic concepts.

Explanation:

The biological species concept establishes that a species is a group in a population whose individuals can mate and have viable, fertile descendence. These groups are also reproductively isolated from other groups or species. This is, the members of a species can not reproduce with the members of other species, or they can their progeny is unviable. The phylogenetic species concept refers to a species as the monophyletic group that is less inclusive for organisms. It is a group of organisms that share an ancestor in common and can distinguish from other similar groups. In this concept, a unique species can include a wide phenotypic variability.