The phrase "appear to underlie" is correct and usable in written English.
It can be used when discussing underlying factors or causes that seem to support or influence a particular situation or phenomenon.
Example: "The data collected from the study appear to underlie the conclusions drawn about the effectiveness of the new treatment."
Alternatives: "seem to be the basis for" or "seem to support".
Rocks of the Coutchiching Series appear to underlie those of the Keewatin Series, at least in some areas, and consist of mostly sedimentary rocks that have been altered to varying degrees by metamorphic processes.
Interactions of these kinds appear to underlie a signaling mechanism, which could be widely employed in the functioning of many membrane proteins.
A lack of knowledge regarding malaria transmission pathways or the utility of mosquito nets did not appear to underlie this indifference.
In our study, subtle and perhaps even benign ecological factors (listed above) appear to underlie the divergent and/or alternative development of certain rehabilitated sites despite the careful implementation and refinement of rehabilitation practices.
Background: Because abnormalities in opioid neurotransmission appear to underlie some of the inherited risk for alcoholism, we examined the effects of naloxone, an opioid antagonist, on corticotropin and cortisol responses in nonalcoholic subjects differentiated by paternal history of alcoholism.
This review provides an overview of changes in motor symptoms with changes in DBS frequency and highlights parallels between the changes in motor symptoms and the changes in cellular activity that appear to underlie the motor symptoms.
Competition for turf appears to underlie last week's clash.
That hope appears to underlie the recent creation of a new religious think-tank, Theos.
In a final footnote, Justice Sotomayor wrote that a concern about an asserted link "between certain vaccines and autism spectrum disorders" appeared to "underlie the majority and concurring opinions in this case".
According to Dr. Hackam and Dr. Anand's review of the literature, chronic low-grade inflammation appears to underlie many, if not most, cases of cardiovascular disease, and, they concluded, even small increases in CRP can predict "future vascular events in apparently healthy, asymptomatic individuals".
In this light, CS appears to underlie intractable headaches.
