Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept. drag each characteristic to the appropriate bin based on the species concept(s) to which it applies. the columns are: biological, morphological, phylogenetic, morphological and phylogenetic, and all three the characteristics are: 1) accommodates asexual reproduction 2) not applicable for extinct species 3) relies on similarities of structures 4) used by scientists in classification 5) species acceptance criteria can be subjective