What is diversity in living organisms;- On earth planet of the world there is great diversity between living things. We know that there is a difference in their nutrition, behaviour, structure and physical appearance. The Biodiversity of the earth is enormous. Current estimates suggest that the earth may have anywhere from 20 to over 50 million species of organisms, but only about 1.8 million have actually been described including over 8,40, 000 insects, about 3,50,000 flowering plants and 48,000 vertebrate animals. We call such a diversity among living organisms as Biodiversity. The living organism shows similarities and frequent facial appearance and therefore they are arranged into various groups, even though there are a great mixture and diversity among them. These living organisms under systematically studied are divided into different categories mainly in plants and animals. The branch of biology addressing identification, naming and classifying the living organisms is understood as Taxonomy. Taxonomy in Greek means that rendering of order. The word Systematic means that to place along. it had been Carlos plant scientist United Nations agency used this word-initial in his book ‘System Nature’. Systematic could also be outlined because of the systematic inserting of organisms into teams or taxes on the premise of bound relationships between organisms.
CLASSIFICATION | DIVERSITY IN LIVING ORGANISMS
It is very difficult for everyone to study all these organisms, but there are some many ways to study them if they are group together according to his characters and family in some suitable way of study which is very helpful and easier. Classification allows us to understand diversity better.
HISTORY OF CLASSIFICATION
In the 3rd and 4th century BC Aristotle and others categorized organisms into plants and animals. They even identified a few thousands or more of living organisms. Hippocrates (460-377 BC), the Father of Medicine listed organisms with medicinal value. Aristotle and his student Theophrastus (370-282 BC) made the first attempt to classify organisms without stressing their medicinal value. They tried to classify the plants and animals on the basis of their form and habitat. It was followed by Pliny the Elder (23-79 AD) who introduced the first artificial system of classification in his book ‘Historia Naturalis’. John Ray AN English naturalist introduced the term species for the primary time for any reasonably living things. it absolutely was then Carl von Linne the Swedish naturalist of eighteenth-century currently referred to as Father of Taxonomy developed the Binomial System of language that is that the current scientific system of naming the species. In his celebrated book ‘Species Plantarum’(1753) he represented five,900 species of plants and in “system Nature’(1758) he represented 4200 species of animals.
TAXONOMY AND BIOLOGICAL PROCESS
Taxonomy is that the branch of biology that deals with identification and language (naming) of living organisms and their classification on the idea of their similarities and variations. it absolutely was the Swiss-French plant scientist Augustin- Pyramus Diamond State Candolle(1778-1841) World Health Organization coined the word Taxonomy, the science of naming and classifying of organisms.
Species is that the basic unit of Classification. it’s outlined because the cluster of people that appear as if in their morphological and fruitful characters and breed among themselves and manufacture fertile offspring’s. The seven main categories used in any plan of classification are given below;-
2.Phylum or Division
The evolutionary history of a particular taxon like species is called phylogeny. The categorization stand on the basis of development is called phylogenetic classification. Phylogenetic classification is not always possible since there are quite a few gaps in the relic proceedings which form the basis of phylogenetic studies and also growth is never unidirectional. Classification not clearly based on evolutionary interaction is called artificial, for example, organisms are grouped according to usefulness (economic plants) size (herbs, shrubs) colour (flowers) ecological role (ground cover) and so forth. Nevertheless, many biologists make use of this non-systematic Classification.