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 numbers of shared characters as we go up the taxonomical hierarchy ? 

Explanation

Taxon : Taxon is a scientific term used for different categories of classification.
Taxonomic Hierarchy : Taxonomic hierarchy is position of different taxonomic categories is ascending order, which describes the complete systematic position of any living organism.
Given below in the flow diagram of taxonomic hierarchy.


As we move up in the taxonomic hierachy the number of shared characters become less.