...... is the family of the cat.

Which of the following statements are not correct?
$(i)$ Lower the taxon,more are the characteristics that the members within the taxon share.
$(ii)$ 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 is incorrect regarding the rules of nomenclature?

Which system is used to provide scientific names to plants?

Which of the following statements is $NOT$ correct?

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