Discussion
Ernst Myer was a proponent of :
Answer: B
Ernst Mayr (spelled Myer in the paper) proposed the Biological species concept.
In 1942 Mayr defined species as groups of actually or potentially interbreeding natural populations that are reproductively isolated from other such groups. The definition rests on reproductive isolation rather than appearance.
The phylogenetic species concept (Cracraft and others) defines species by shared derived characters and ancestry. The recognition concept (Paterson) rests on a shared mate-recognition system, and the evolutionary species concept is associated with Simpson and Wiley.
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