What do scientists mean when they say that species is the only "natural" rank in classification?

1 Answer
Dr Birendra Kumar Mishra
Jan 13, 2017

Because below the species, varieties, sub-varietes of species are found.

Explanation:

The species are regarded as the only natural rank in classification. It is bacause, below the rank of species, the varieties, sub-varieties of the same are found. Thank you

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