On 2016-10-31, Dave Smith > wrote:

> On 2016-10-31 5:41 PM, graham wrote:

>> But here they write of a single species.

> But not a single bacterium.

As I understand it, "bacterium" is a SINGLE species (singular). The
term "bacteria" (plural) refers to all them lil' squiggly "bacterium"
bastids.

Yes? No? Maybe?

Nevermind. Fight it out amongst yerselves:

http://hosbeg.com/bacteria-and-bacterium/

nb