Zoology

Systematics: The term “systematics” is derived from the word “systema,” meaning the systematic arrangement of organisms. It considers the evolutionary relationships among organisms. Plant systematics, in particular, deals with the interrelations between plants and their evolutionary descent. Systematics studies biological

Taxonomy, the science of classifying organisms, has evolved over centuries from simple groupings based on observable traits to complex systems incorporating evolutionary relationships and molecular data. The history of taxonomy can be divided into distinct phases, each marked by significant

Sytematics is commonly defined as the study of biological diversity and the relationships among organisms. Taxonomy, that component of systematics specifically focusing on the theory and practice of classification, is not clearly separable and both are frequently used interchangeably by

Taxonomy, in a broad sense the science of classification, but more strictly the classification of living and extinct organisms i.e., biological classification. The term is derived from the Greek taxis (arrangement) and nomos (law). Taxonomy is, therefore, the methodology and principles of systematic botany and zoology and sets up arrangements of the kinds of plants and animals in hierarchies of superior and subordinate

The Earth can be divided into distinct regions based on the presence or absence of various organisms. These regions are known as realms. Over time, different scientists have proposed various classifications of these realms. In 1857, P. L. Sclater categorized