Question

On what basis the New Systematics differs from classical systematics?
Mention the various approaches which are adopted for classification under New Systematics.

Answer 1

Hint: Systematics refers to the study of the diversification of organisms.
It includes the interactions between different living beings.
New systematics and classical systematics are different approaches to the same subject.

Complete answer: Systematics is a branch of biological studies.
1. It is the study of the identification, taxonomy, and nomenclature of different living beings.
2. Using morphological and anatomical approaches as well as applying state of the art techniques (e.g. ultrastructural analysis), classical systematics investigates the phylogenetic relationships of species.
3. Later on, Sir Julian Huxley introduced a new term called ‘New Systematics’.
4. The new systematics varies in different ways from classical systematics.
5. Instead of anatomy, organisms are categorized on the basis of cytology, physiology, biochemistry, and ecology.
6. In the work of systematics, species do not hold the central position.
7. The focus has switched to sub-species and populations in new systematics.
8. For calculating different parameters, experimental variability is used.
9. In order to understand primitivity, inter-relationships, and advances between organisms, statistical data is integrated.

Note: 1. Taxonomy is a branch of biological sciences.
It is the way species are categorized on the basis of similarity and dissimilarity, and species are named.
It is divided into taxa by the organism.
2. Classification is a mechanism in which species that are similarly related are grouped in a group.
The classes that have links are put into larger groups.
3. Taxonomic groups are known as the different grouping levels or grades of classification.
Nomenclature refers to the assigning of ta to a universal scientific name.