The static concept of species was put forward by

Cat and dog are placed in which families respectively?

Which of the following is against the rules of $ICBN$?

$X$ 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 $Z$.

Define the term: Genus.

In which order is the human placed?