Question

Mayr's biological concept of species is mainly based on

• A. Morphological traits
• B. Reproductive isolation
• C. Modes of reproduction
• D. Morphology and reproduction

Answer 1

The correct option is B Reproductive isolation

Mayr proposed the origin of species in his book 'Systematics and the Origin of Species'. The biological species concept groups the members of the same species organisms that can potentially interbreed to produce fertile offspring. It groups the individuals on the basis of their reproductive isolation, which in turn maintain the morphological differences among the reproductively isolated individuals of the same habitat. It is not based on methods of reproduction. Thus the correct answer is option B.