Question

All the cats in the world belong to ………… same species.
A.Panthera leo
B.Panthera tigris
C.Panthera pardus
D.Felis domesticus

Answer 1

Hint: Species is one of the broad categories in the hierarchical system. It is the basic taxonomic category.
Cats are carnivorous, domestic pet animals.

Complete step by step answer: Species is a group of individuals sharing a common gene pool, arising from a common ancestor and can interbreed among themselves. The concept behind the taxonomic category species was given by Ernst Mayr. It is the basic taxonomic category.
One species can be distinguished from the other closely related species based on the morphological differences. Example- Mangifera indica, Solanum tuberosum, and Panthera leo.
The second name in biological names represents species (like indica, tuberosum, and Leo) and the first name represents the genera (like Mangifera, Solanum and Panthera).
The genus includes one or more species of different organisms but having some common features
Example- Panthera has three specific epithets called tigris, pardus and leo. Nigrum and melongena are under Solanum.
All the cats in the world belong to Felis domesticus. Cats are carnivorous animals and commonly domesticated as pets.
So, the correct option is D. Felis domesticus.

Note: Seven main categories in the hierarchical system are as follows:
Kingdom, Phylum, Class, Order, Family, Genus, and Species.
The number of common characters decreases from species to kingdom. The lower the taxa, the more are the common characters shared by the members within a taxon. The higher the category, the less are the common characters shared by the members within a taxon.
So, from species to kingdom classification becomes more complex.