Based on the traditional definition of species, bacterial species cannot be defined readily, due to the fact that they do not mate.
The definition of species is that a species is one with distinct characteristics that produce viable offspring when mated with another organism in the same species.
This definition of a species does not fit bacterial species because bacterial species do not mate or reproduce se×ually.
Bacterial species reproduce by other means that do not involve mating such as by binary fission.
Therefore, based on the traditional definition of species, bacterial species cannot be defined readily, due to the fact that they do not mate.
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