Functional extinction means that there are not enough live animals (or animal protoplasm) of a certain species for the species to breed and survive.
I'm not sure if you mean extinction, or extension, but there you have both.
No longer in existence
If you mean on the brink of extinction then no.
It means complete destruction; annihilation
The characters affect.
functional design specification
something work right
New species that form right after a mass extinction
The absence of any reinforcement following a behavior. Usually extinction occurs in situations where positive reinforcement was formerly applied.
What is the functional strategy of the facebook ( Marketing or financial strategy ) i don't know if the functional strategy mean the marketing or financial any helps plz
(of flora or fauna) in imminent danger of extinction; "an endangered species"
limited amount and close to extinction