Define a taxon. Give some examples of taxa at different hierarchical levels.

(N/A) taxon is defined as any unit or category of biological classification that represents a specific rank in the taxonomic hierarchy.
Examples of taxa at different hierarchical levels include:
$1$. Species (e.g.,$sapiens$)
$2$. Genus (e.g.,$Homo$)
$3$. Family (e.g.,$Hominidae$)
$4$. Order (e.g.,$Primata$)
$5$. Class (e.g.,$Mammalia$)
$6$. Phylum (e.g.,$Chordata$)
$7$. Kingdom (e.g.,$Animalia$)
These levels are arranged in an ascending order of complexity.