Question

Which one is a taxon?
A. Order
B. Family
C. Genus
D. All of the above

Answer 1

Hint: A taxon is a group of one or more population of an organism to form a unit. Taxons are arranged in a hierarchy level. It is a scientifically classified group of entities in hierarchical levels of classification.

Complete Answer:
In biology, there are 7 hierarchical levels starting from Kingdom to Species. Each level in this hierarchy is a group of organisms and is referred to as taxon or taxa.
Kingdom
Phylum
Class
Order
Family
Genus
Species

1. Kingdom – Kingdom is the highest level of classification. There are five kingdoms in which all the organisms are placed which are given by R.H. Whittaker.
Animalia
Plantae
Fungi
Protista
Monera
2. Phylum – Phylum is the next level after the kingdom in hierarchy of classification. Example – Porifera, Chordata. We use division in case of plants instead of phylum.
3. Class – Classes are the most general rank in the classification of organisms. It comes after the phylum. Example – Reptilia, Aves, etc.
4. Order – It is a most specific rank in the hierarchical classification of living beings. The order constitutes many families. For example – Primates, Carnivora, etc.
5. Family – Family is a taxon that includes various genera which have similar characteristics Example – Felidae, Canidae, etc.
6. Genus - Group of similar species is called Genus. Some genres have only one species whereas some genres have more than one species. Example – lion, tiger, leopard both the three animals are placed in the same genus called Panthera.
7. Species – It is the lowest taxon or rank in the hierarchy level of classification. It is a group of organisms having similar characteristics or who can interbreed. Example – sapiens, leo, etc.
Example –
Classification of Human beings (Homo sapiens).
Kingdom - Animalia
Phylum - Chordata
Class - Mammalia
Order - Primates
Family – Hominidae
Genus - Homo
Species – sapiens
Therefore, it has been clear from the above discussion that the all three that are Order , Family, Genus are taxons.

Hence option D is the correct answer for this question.

Note: This classification makes it easier to study about the different kinds of organisms ever classified and also makes us aware about the biodiversity of this Earth. Till now many organisms on this Earth are not classified or we can say not discovered.