The phrase "are relatively persistent in" is correct and usable in written English.
It can be used to describe the degree of consistency or durability of something in a particular context or situation.
Example: "The species are relatively persistent in their habitats, adapting to changes in the environment over time."
Alternatives: "tend to be quite persistent in" or "are fairly consistent in".
Sulfonamide antibiotics, the first broad spectrum antibacterial medications [17], are relatively persistent in the environment and do not sorb strongly to soil.
Unlike strand breaks and other DNA lesions that are readily repaired, DPCs are relatively persistent in the cells (Lei et al.1995; Oleinick et al.1987).1987
ATR metabolites are relatively persistent in groundwater and soil/sediment, with mean aerobic and anaerobic soil half-lives ranging from 20 146 and 58 547 days, respectively, and aerobic aquatic half-life about 2-fold higher (Giddings et al. 2005).
The most commonly used chelants, ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DPTA) are supposed to be relatively persistent substances, poorly degradable in biological treatment facilities and are subsequently considered as environmentally critical compounds.
Permethrin tends to be relatively persistent and can remain active for several weeks after application [ 16].
Therefore, the use of rRNA templates may emphasize the actively growing populations in the community as opposed to those that are relatively inactive but persistent in the community.
Serious adverse events (SAEs), including those leading to death, prolonged hospitalisation or persistent disability, are relatively common in preterm infants 25 28 weeks gestation.
In particular, many economic phenomena seem to follow qualitative economic laws that are relatively robust in the sense that they are persistent across time and space.
[Poughkeepsie Journal] Back home in Zuccotti Park, though, the weekend was relatively quiet, persistent coughing notwithstanding.
