Question

what is a key? in biollogy chapter 1 class 11​

Answer 1

Answer:

Key is a device used by the biologist... For identifying unknown organisms.... Key are constructed so that they are presented with a series of the choices and characteristics....

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Answer 2

Answer:

KEY:-________

• it is a taxonomical aids.
• it is used for identification of plants and animals.
• it is based on contrasting character ( similarities or dissimilarities)
• it is a choice made between two options.
• both contrasting character are known as couplet.
• each statement of couplet in the key is known as the LEAD.
• keys are analytical in nature.

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