Question

In which of the following case, greater variation can be observed?
A. Within the same species
B. Within different species
C. Within Kingdom and phylum
D. None of the above

Answer 1

Hint: Classification is the layout of things in taxonomic groups under observed similarities. Biological classification is the scientific process of organising organisms into a hierarchical series of groups and sub-groups based on their similarities and differences. Several biologists have contributed to this process of classification, which took years ago for scientists to determine the most basic characteristics for the classification.

Complete step-by-step answer:
Taxonomy is a branch of science that deals with the detection, nomenclature, and categorization of organisms. The purpose of the taxonomy is to categorise all the organisms so that evolutionary development and relationships are visible and provide identification and nomenclature of a specific organism. The basic principles of taxonomy assist in the biological classification of the organisms based on their similarities and differences between the organisms. The kingdom is the highest category in the hierarchy of the biological classification. The following category is the division or the phylum. The lowest category has the least number of variations between the organisms. The highest category has a greater number of variations because there are a huge number of organisms that have been involved in those categories.

Image: Taxonomic Hierarchy

Therefore the correct answer is option C.

Note: The word “Taxonomy” derives from the Greek word – “taxis”, which means the division or arrangement, and “nomos”, which means the method. A taxonomic hierarchy describes the sequence of categories in decreasing or increasing order. Taxonomy is a branch of Biology that means the process of grouping the various living species. A taxon is called a group of organisms categorised as a unit.