Define a taxon. What is meant by taxonomic hierarchy?

Define a taxon. What is meant by taxonomic hierarchy? Give a flow diagram from the lowest to highest category for a plant and an animal. What happens to the number of individuals and number of shared characters as we go up the taxonomic hierarchy?

(i) Taxon is a group of organisms representing any level to category. For example, Sparrow, flatworm, lion, crocodile, etc.
(ii) Taxonomic hierarchy is the system of arranging taxonomic categories in a descending order with species at the base.
(iii) The number of individuals increases as we go up in a taxonomic hierarchy.
(iv) The number of shared or correlated characters decreases as we go up in a taxonomical hierarchy.