Practice question

Ernst Mayr's biological species concept defines species as groups of interbreeding natural populations reproductively isolated from other such groups, emphasizing gene flow and reproductive isolation rather than morphology alone. Prezygotic and postzygotic mechanisms maintain integrity. Though problematic for asexual organisms and fossils, concept remains central to speciation studies. Therefore definition and proponent link to Interbreeding natural populations, focusing on interbreeding and isolation as criteria. This concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.