15 public questions tagged with this topic.
Order is placed below class and above family. The ascending sequence is species, genus, family, order, class, phylum or division, and kingdom.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
The ascending hierarchy in animals is Species → Genus → Family → Order → Class → Phylum → Kingdom. In plants, division is used in place of phylum.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
The descending hierarchy in animals is Kingdom → Phylum → Class → Order → Family → Genus → Species. In plants, division is used in place of phylum.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
Species is the lowest taxonomic category. The ascending hierarchy is species, genus, family, order, class, phylum or division, and kingdom.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
Order is ranked above family. The ascending hierarchy is species, genus, family, order, class, phylum or division and kingdom.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
In animal classification, phylum is placed directly below kingdom. In plants, the corresponding category is called division.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
The hierarchy from the broadest to the most specific category is Kingdom → Phylum or Division → Class → Order → Family → Genus → Species.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
As one moves from species towards kingdom, the categories become broader and include more organisms, while the number of common characteristics decreases.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
Humans belong to the family Hominidae, order Primata, class Mammalia and phylum Chordata. Therefore, Primata and Mammalia occur between Hominidae and Chordata.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
Species is the lowest and most specific taxonomic category. Its members share more characteristics than members grouped at higher taxonomic levels.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Species and Genus
Humans belong to the genus Homo, family Hominidae, order Primata and class Mammalia. Therefore, Hominidae and Primata occur between genus and class.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Diversity in the Living World
Modern classification follows Woese's three-domain system based on 16S rRNA divergence, adding Domain as super-kingdom rank. The universally accepted descending sequence is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species, reflecting progressively narrower shared ancestry. Domain distinguishes Bacteria, Archaea, and Eukarya; subsequent ranks show increasing phenotypic and genetic similarity. Traditional Linnaean hierarchy lacked Domain, but contemporary textbooks, NCERT Class 11, and competitive exams incorporate Domain at top to represent tree of life accurately and monophyly principles. Examinations emphasize this concept because it underpins correct interpretation of phylogenetic relationships and evolutionary systematics.
Ref: NCERT Class 11 Biology Chapter 1 The Living World; Campbell Biology 12th ed., Chapter 27 Three Domains
