"to act separately" is correct and usable in written English.
You can use it when you want to talk about two or more individuals, organizations, or groups taking separate steps or actions. For example: "The two teams decided to act separately to complete the task."
A legal loophole dating back to the last century, when an eight-week ban on work after childbirth was introduced to "protect" young mothers, requires the government to act separately to set up maternity insurance.
Churches should act together in all matters except those in which deep differences of conviction compel them to act separately.
The subsequent reproductive isolation of the hominoid species allowed evolutionary forces to act separately on the DUXY loci thereby promoting the divergence of the four gene copies.
Because ibr5-1 is likely to be a null allele [ 37], these results support a model in which IBR5 and TIR1 act separately to affect auxin and ABA responsiveness.
If so, it would be interesting to determine whether they act separately or as a heterologous unit.
However, these findings do not rule out the possibility that different adaptor proteins can also act separately to a certain extent.
It is quite likely that numerous factors act separately to cause tumour growth and spread, and pathways may interact in an as yet undefined manner.
Several evolutionary explanations are possible, which may act separately, or in concert to produce such patterns.
AMPK activation, PKA inhibition, and redox stress may act separately or in concert to repress hepatic gluconeogenesis and stimulate insulin sensitivity.
In this context important open issues are for instance how exactly PcG PTMs functionally relate to each other, that is, whether PTMs act separately, processively or combinatorially.
We also found that TGF-β and atRA could act separately or together in inducing naïve CD4+ cells to phenotypically resemble endogenous CD25+FOXP3+ Tregs, and these effects are summarized in Table 1.
