facultative

I can find references dating back to at least the 1980s that describe various kinds of facultative lichenization.

Also for the initial point of humans being facultative carnivores, it doesn't track with our origins from primates.

Salmonella are facultative anaerobic bacteria that can survive under low oxygen tension such as in manure slurry pits.

If a referendum is facultative, why even bother?

The former are caused by obligate aerobes, the latter by facultative anaerobes and are far more dangerous.

It's to remove the biofilm that exists at and below the gumline containing facultative anaerobes which cause periodontal disease.

This leaves the already-obligate-not-facultative JS VMs, which are evolving fairly rapidly due to browser competition, serving both hand-coded and compile-to-JS workloads.

It's just another example of facultative lichenization, which has already been observed in species quite widely scattered across the fungal kingdom.

In a blender, the obligates will likely die but the facultative will remain.

But I've also come to the conclusion humans are facultative carnivores, that plants have always been a fallback food.

Such inflammation can, in turn, deplete the gut microbiota (and consequently microbial gene diversity), and allow facultative anaerobes such as Enterobacteriaceae to proliferate.

Besides 'facile' and 'facility', there are a few other words from the same root: 'faculty', 'facultative', 'facilitate'.

And what separates "obligate carnivores with a beneficial tolerance for a tiny number of plants" from a facultative carnivore?

Plugins alas are still "facultative not obligate" on the desktop, so browsers support them.

JS is "obligate, not facultative", as biologists say, for browser implementors.

I said that our preferences was for meat, hence "facultative carnivore".