Given that this improvement in "fit" of organism to environment is usually the result of evolution, I prefer to use the term adaptive evolution for the process of adaptation.
(this improvement in "fit" of organism; is; T:usually; the result of evolution) (I; prefer; to use the term adaptive evolution for the process of adaptation) Context(I prefer,List([100, 108))):(I; prefer to use; the term adaptive evolution; for the process of adaptation)
I prefer,List([100, 108))
this improvement in "fit" of organism I I
is prefer prefer to use
T:usually the result of evolution
to use the term adaptive evolution for the process of adaptation
the term adaptive evolution for the process of adaptation