The Living World

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

The Genus name starts with capital letter and the species name starts

with small letter.



Name of the author (in abbreviated form) appears at the end of the

biological name. E.g., Mangifera indica Linn. It indicates that this species

was first described by Linnaeus. [NEET 2019]

TÅXØÑØMÏÇ ÇÅTËGØRÏËS

 Classification

involves

hierarchy of steps in which

each

step

represents

a

taxonomic category (rank).

 All

categories

together

constitute

a

taxonomic

hierarchy.

 Each

category,

rank

or

taxon represents a unit of

classification.

Similarity decreases

A group of organisms occupying a particular category is called

a taxon (pl. taxa), e.g., Class Mammalia.

SPËÇÏËS



It is a group of closely related organisms capable of interbreeding to

produce fertile offspring. It is the lowest category. (AIPMT 2003)

COMMON NAME

GENERIC NAME

SPECIFIC EPITHET

Mango

Mangifera

indica

Potato

Solanum

tuberosum

Nightshade

Solanum

nigrum

Tomato

Solanum

lycopersicum

Brinjal

Solanum

melongena

Lion

Panthera

leo

Tiger

Panthera

tigris

Leopard

Panthera

pardus

Modern man

Homo

sapiens