Biology · THE LIVING WORLD

Consider the following statements regarding taxonomic categories and hierarchy: I. Systematics includes identification, nomenclature, classification, and takes into account evolutionary relationships between organisms. II. A 'taxon' represents a unit of classification and is merely a morphological aggregate rather than a distinct biological entity. III. 'Insects' represent a taxon at a specific rank because they possess recognizable concrete features such as three pairs of jointed legs. IV. The lowest category in the taxonomic hierarchy for both plant and animal kingdoms is 'Genus'. Which of the above statements are correct?

1. A
   I and III only
2. B
   I, II and III only
3. C
   II and IV only
4. D
   I, III and IV only