The biological species concept, which defines a species as a group of interbreeding natural populations that are reproductively isolated from other such groups, was formulated by:
Answer and explanation
Correct answer: A. Ernst Mayr
- Step 1: Defining a species has been central to evolutionary taxonomy.
- Step 2: Ernst Mayr, often hailed as 'the Darwin of the 20th century', formulated the modern Biological Species Concept in 1942.
- Step 3: Under this definition, reproductive isolation is the primary criterion establishing species boundaries in sexually reproducing organisms.
Answer
Ernst Mayr.
Why not the others: Charles Darwin formulated natural selection but used a morphological/gradual species concept; Carl Linnaeus created the binomial nomenclature system based on static typological morphology; Jean-Baptiste Lamarck proposed the inheritance of acquired traits.
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