Systema Naturae is concerned with

$X$ being a higher category is the assemblage of families which exhibit a few $Y$ characters. The $Z$ characters are less in number as compared to different genera included in a family. Identify $X$, $Y$, and $Z$.

Which of the following scientific names is written correctly according to the rules of binomial nomenclature?

Match the correct pair (order-phylum/division).

What is the genus of potato and brinjal?

Which of the following taxonomic categories contains the maximum number of organisms?