The scientific name $Rattus$ $rattus$ is an example of:

Identify the following analogy-based questions:
$(i)$ In Yeast and Hydra : Budding :: In Planaria : .....
$(ii)$ Method of naming : Nomenclature :: Organism associated with naming : .....

Which of the following statements are not correct?
$(i)$ The number of characteristics in common increases down the hierarchy.
$(ii)$ Order is the assemblage of genera which exhibit a few similar characters.
$(iii)$ Cat and dog are included in the same family Felidae.
$(iv)$ Binomial nomenclature was introduced by Carolus Linnaeus.

Which of the following statements regarding nomenclature is correct?

In which text is the classification of organisms mentioned?

What does '$X$' represent in the given figure?