Which of the following is not a taxon but a category?

Which of the following taxonomic categories is being described by the given statements $(i-iii)$?
$(i)$ It is the basic unit of classification.
$(ii)$ It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offspring.
$(iii)$ Human beings belong to the species $sapiens$ which is grouped in the genus $Homo$.

The system of providing names to organisms following certain rules is called:

$A$ group of individual organisms with fundamental similarities is known as a........

Potato,tomato,brinjal,mustard and cauliflower belong to how many genera?

Which of the following animals is correctly matched with its taxonomic category?