Question

Sibling species are also known as
A. Subline species
B. Genus
C. Species
D. Biological races

Answer 1

Sibling species are those species which look alike. The members of these species are identical but cannot breed with each other.

Complete answer:
Species is the largest group of organisms in which two organisms of the appropriate mating type can produce offspring. All species have two parts. The first part is the genus to which the species belongs and the second part is the specific name.
Organisms are grouped into species by their morphological similarities so that it is easy to classify the sexual reproducing organism so that they can interbreed easily.
A sibling species can be defined as the group of organisms that can only be differentiated only after genetic analysis. The sibling species appears similar in appearance but they cannot breed with each other. The sibling species are reproductively isolated. The sibling species further evolve into morphologically and taxonomically different species as they do not mate with one another. Sibling species do not depend on the environmental conditions.
As a result of which two types of species are formed. The sibling species can only be distinguished on the basis of genetics that is evolved. These species cannot interbreed with each other. Sibling species are very similar in behaviour, appearance and other characteristics and they are called biological races. Examples of Sibling species include Drosophila pseudoobscura and D. persimilis which are almost identical but they cannot breed.
Human activities such as civil engineering, agriculture have an effect on the habitable environment and cause some of the members of the population to migrate.

Hence, the correct answer is option (D).

Note: Sibling species are related groups of organisms which are similar but cannot interbreed. Bio species explains the species as a potential interbreeding organism but are not able to reproduce. This concept helps to distinguish sibling species.