What is the highest taxonomic category that includes all other groups in the classification hierarchy?

Which taxonomic category is formed by a group of orders?

Match the following columns:

Column-$I$	Column-$II$
$P$. Chemotaxonomy	$I$. Uses computers to easily process data based on all observable characteristics.
$Q$. Cytotaxonomy	$II$. Based on evolutionary relationships.
$R$. Numerical taxonomy	$III$. Uses chemical constituents of plants.
$S$. Phylogenetic taxonomy	$IV$. Uses information like chromosome number, structure, and behavior.

Match Column-$I$ with Column-$II$ for the classification of the housefly and select the correct option using the codes given below:

Column-$I$	Column-$II$
$(a)$ Family	$(i)$ Diptera
$(b)$ Order	$(ii)$ Arthropoda
$(c)$ Class	$(iii)$ Muscidae
$(d)$ Phylum	$(iv)$ Insecta

Match the following columns:

Column-$I$	Column-$II$
$P$. Kingdom	$1$. indica
$Q$. Order	$2$. Musca
$R$. Family	$3$. Fungi
$S$. Genus	$4$. Canidae
$T$. Species	$5$. Polymoniales

Choose the correct sequence for $P, Q, R, S, T$.

The branch connected with nomenclature,identification,and classification is: