This slideshare deals with the Diversity in the Living World,Nomenclature and Principles of Nomenclature.

2. Diversity:
Variability among living organisms.
 Ranges between 1.7 -1.8 millions.

3. Identification –nomenclature:
 Standardising the name of living organisms such that the
particular organism is know by the same name all over the
world.
 Scientific name to an identified organism.
 Nomenclature is only possible when the organism is described
correctly and identified accuratly.
 Identification is to determine whether a collected organism is
entirely new or already known.
 In plants comparision is done with authentic herbarium
specimen and keys in floras.

4. Nomenclature:
 Plants: international code for botanical
nomenclature.
Animals : international code for zoological
nomenclature.
One organism-one name.

5. Principles or rules of
nomenclature:
 Naming system given by Carolus Linnaeus is being followed by
biologists all over.
1.two components
this system of providing a name with two components is called
binomial nomenclature.
2. Biological names are generally in Latin and written in italics. They
are Latinised or derived from Latin irrespective of their origin.
3. The first word in a biological name represents the genus while the
second component denotes the specific epithet.

6.  4. Both the words in a biological name, when handwritten, are
separately underlined, or printed in italics to indicate their
Latin origin.
 5. The first word denoting the genus starts with a capital letter
while the specific epithet starts with a small letter.
It can be illustrated with the example of
Mangifera indica.
 Name of the author appears after the specific epithet, i.e., at the
end of the biological name and is written in an abbreviated form,
e.g., Mangifera indica Linn. It indicates that this species was first
described by Linnaeus.