Modern Taxonomy or New Systematics: The term new systematic was coined by Julian Huxley (1940).
New systematic is systematic study which takes into consideration all types of characters. Besides classical morphology, it includes anatomy, cytology, physiology, biochemistry, ecology, genetics, embryology, behavior etc. of the whole population instead of a few typological specimens.
In contrast classical systemetics is based on the study of mainly morphological traits of one or a few specimens with supporting evidences from other fields. New systematics is also called population systematics and biosystematics. It strives to bring out evolutionary relationship amongst organisms.
1. New systematic is based on the all types of variation in the species.
2. Along with morphological variations, other investigations are also carried out to know the variety of traits.
3. Delimitation of species is carried out on the basis of all types of biological traits. It is also called biological delimitation.
4. Traits indicating primitiveness and advancement are found out.
5. Inter-relationships are brought out.
6. Species are considered as dynamic unit.
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