Cat is included in which family?

Who proposed the binomial nomenclature system?

The basic unit of classification / taxonomy is

$A :$ Biological concept of species is based on reproductive isolation.
$R :$ Most accepted species concept was given by Linnaeus.

What is the group of individuals that share maximum characteristics, have maximum similarity, and have the ability to interbreed to produce fertile offspring called?

Which of the following represents the correct match of an animal with its taxonomic category?