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

Explanation

Taxon is defined as, Any unit of category in a Taxonomic system. There are different taxonomic levels such as
a) Species - It is the lowest category in which a group of Individual organisms with fundamental similarities are placed.
Example : Mangifera indica (Mango), indica is the specific epithet.
b) Genus - A group of related species which has more characters in common in comparison to species of other genera.
Example : Potato and brinjal are two different species but belong to the genus solanum.
c) Family - It has a group of related genera with still less number of similarities as compared to genus and species.
Example : Solanum, Nicotiana and Datura are three different genera but placed in the family solanaceae.
d) Order - It is the assemblage of families which exhibit a few similar characters.
Example : Based on the floral characters. Solanaceae and Convolvulaceae are included in the order polemoniales