Question

The different forms of interbreeding species that live in different geographical regions are called as
A) Sibling species
B) Sympatric species
C) Allopatric species
D) Polytypic species
E) Monotypic species

Answer 1

Speciation is the process by which new species are formed. Species may diverge or get reproductively isolated by many barriers as in by geographical, zygotic barrier, behavioural isolation.

Complete answer:
There are three type of speciation which are as follows:

1. Allopatric speciation: such species get isolated from each other by some barriers such as mountains, rivers or waterway the gene flow between them ceases. These develop according to the need of the environment and hence they develop different genetic characteristics
2. Sympatric speciation: these do not rely on geographical isolation but rather they get isolated by reproductive isolation and hence the population diverges into two subpopulations. This arises due to competition in resource, disruptive selection.
3. Parapatric speciation: here the population forms a new niche. They do not undergo any geographical barrier but the population does not mate randomly.
   So, The different forms of interbreeding species that live in different geographical regions are called Allopatric speciation.

So, the correct option here would be option C.

Note:
Populations of specific species consist of different species and are divided into subspecies. Species divided into sub species are considered as Polytypic species. Species that do not have any variation or sub species are considered as monotypic species. Sibling species are those that are morphologically similar but are unable to produce fertile offspring.