WHAT LIVING IS ? When we try to define living we conventionally look for distintive characteristics exhibited by living organisms growth reprodution ablity to sense environment and mount a suitable response come to our mind immediately as unique features of living organisms like metabolism ablity to self replicate self organise and interact BIODIVERSITY 1 . occurrence of the number and types of organisms present or earth is called biodiversity The number of species that are known and described range between 1.7-1.8 million each different kind of plant animal or organism that you see represents a species OTHER UNIVERSAL RULES OF NOMENCLATURW ARE AS FOLLOWS : 1 . biological names are latin and written in italis they are latinised or derived from latin irrespective of their origin 2 . The first word in a biological name represents the genus while the second component denotes the specific epithet 3 . Both the words in a biological name , when hand written are separately underlined or printed in italics to indicate their latin orign

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