Thus arobes and facultative anarobes are prototrophic for O.
On the whole, perhaps, the "facultative" Referendum is to be preferred to the obligatory.
Other important species will be considered as facultative parasites.
The great majority of milk bacteria are either obligate or facultative aerobes.
I have seen this particularly in those cases where facultative divergence also was greater than usual.
Moreover, the extent of the "facultative" divergence attainable by prisms shows a considerable latitude.
Many are exclusively parasitic or saprophytic, and many are facultative, both conditions of living being possible.
It has been shown that if these organisms are grown with arobes or facultative anarobes they thrive at ordinary room temperature.
The distinction between facultative arobe and facultative anarobe might be made.
The existence of anarobic and facultative anarobic bacteria shows the fallacy of such beliefs.