Who among the following is known as the father of taxonomy?

Four statements are given below regarding species. Which two statements are correct?
$(1)$ Maximum similarity in maximum number of characters.
$(2)$ First letter in capital letter.
$(3)$ Latin word written after the scientific name.
$(4)$ Repetition of the species name is not possible.

What is the first step of taxonomy?

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

Find the correct sequence of taxonomic categories.

Which of the following represents the correct sequence of taxonomic categories in descending order of diversity?