0 very, or much more than usual -- son derece, çok, aşırı
In successive stages extremely long plans were formed of which probably only the newest phase(s) would have been in use.
Accepting the purely syntactic part of this extremely simple analysis, let us consider the semantics of the sentence.
Second, it must be noted that present extremely low levels of development are largely due to the failures of past centralised regimes.
Access to the services of these systems was extremely limited, often to an urban population.
Among those with a prior history of depressive symptoms, recall was extremely poor.
Nevertheless, this is a very good and accessible introduction which students and those crossing over into performance studies will find extremely useful.
Seeing as though most animals aren't even able to breed with each other, it is extremely unlikely for an alien to achieve this.
A chapter on hybrid peas seems superfluous when, as the author admits, hybrid varieties are extremely unlikely!