Question

10 points

How is a Key helpful in the identification and Classification of an organism??

Answer 1

A KEY IS AN ARTIFICIAL ANALYTICAL DEVICE ,

CONSISTING A SET OF ALTERNATE CHARACTERS OF VARIOUS PLANTS AND ANIMALS

USED FOR IDENTIFICATION PURPOSE

IDENTIFY ON THE BASIS OF SIMILARITIES AND DISSIMILARITIES

KEYS ARE GENERALLY ANALYTICAL IN NATURE

Answer 2

Hello Dost ☺

Answer :

Key is a taxonomical aid used for identification of plants and animals based on the similarities and dissimilarities.

The keys are based on contrasting characters generally in a pair called couplet. Selection of one character leads to rejection of another character while identifying a particular species or genera or family and so on.

For example presence or absence of hair on body can give a clue if an animal belongs to mammals or not.

Separate taxonomic keys are required for each taxonomic category such as family, genus and species for the purpose of identification.

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