The case of pantothenate, the only essential vitamin with a clear metabolic effect is unique, as its essentiality is strain-dependant.
But it can't give you the only essential one: desire.
Interest in both science and music are the only essential qualifications, he said.
Swarming, after all, is not the only essential task that P. aeruginosa must carry out.
Broadband remains the only essential utility we buy without knowing exactly what we are paying for, writes Rupert Jones.
The only essential requirement here, in fact, is that the boy in question stays devoted and doesn't mess said Cookie around.
The only essential is a wish to get away from the world, be it for a few days or a few months.
Business and the military are two fertile breeders of excessive self-confidence, but the only essential qualification for a white-horse candidate is a total lack of experience in running for or holding elective office.
And the only essential requirement for white-horse voters is to be, like Howard Beale in Paddy Chayefsky's movie "Network," "mad as hell" and "not going to take this anymore".
The Medium is the only essential elements for the process to be able to take place.
The only essential security service this covers is the integrity of the data in cloud.
