Which category comes after phylum in descending order in taxonomic hierarchy?

What is the scientific name of humans?

When is a rank called a taxonomic category?

Select the option that shows the correct sequence of taxonomic categories:

Identify the true statements from below $:-$
$(a)$ Convolvulaceae and Solanaceae belong to the same order
$(b)$ Animals,mammals,and dogs represent different taxa at same levels
$(c)$ Musca domestica is the scientific name of housefly
$(d)$ Taxonomic categories are distinct biological entities

Classical systematics embodies the concept of classical taxonomists as: