Respuesta :
When two populations of similar organisms are reproductively isolated, then we consider them as separate species.
- Species are formed when there is reproductive isolation between the different populations of similar organisms.
- Reproductive isolation can happen due to several factors such as environmental problems and natural calamities.
- Sometimes, a barrier arises between the two populations due to which populations of similar organisms get separated and the individuals of each population reproduce within their population. With time, their genetic makeup changes and they become separate species.
- The two species can have many similar characteristics. But, they will have genetic variations.
- For example- Solanum tuberosum and Solanum melongena are two different species but they have some common characteristics.
Thus, when no reproduction occurs between the two populations from similar organisms, then they become different species.
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