Rattus rattus is a:

Tautonym

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Homonym

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Synonym

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Antonym

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Solution

The correct option is A Tautonym
A tautonym is a scientific name in which both the genus and species have the same name. Rattus rattus is an example.

A homonym is a name of a taxon which is identical to the name of another totally different taxon. An example is Echidna - a taxon of spiny anteater and also of Moray eels.

Synonyms are names of a taxon which denote the same organism. Same organisms and different names.

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