The phrase "are present in various" is correct and usable in written English.
It can be used when discussing the existence or occurrence of something in different contexts or locations.
Example: "These species are present in various ecosystems around the world."
Alternatives: "can be found in several" or "exist in different".
At least 10 different types of collagen are present in various tissues.
Furthermore, sdCRRSPs are present in various early diverging plant lineages such as the gymnosperm Ginkgo biloba (including Gnk218,19) and the liverwort, Marchantia polymorpha (Supplementary Figure 2f).
Sclereids are extremely variable in shape and are present in various tissues of the plant such as the periderm, cortex, pith, xylem, and phloem.
There is growing evidence that Treg cells are present in various nonlymphoid tissues in health and disease, that they have a unique phenotype and that their functions go beyond the classical modulation of immune responses.
Two-phase flows are present in various industrial processes in engineering fields ranging from light water reactor engineering to petrochemical engineering.
Random variables and stochastic processes are present in various areas, such as physics, engineering, ecology, biology, medicine, psychology, finance, and others.
The focus is on the 'waste-to-energy' approach; various criteria for this approach are discussed, as well as the inconsistent attitudes about waste management approaches that are present in various countries in the European Union.
Thus different phenomena are present in various media.
These physical, institutional, and social barriers which disable one in every seven person around the world are present in various aspects of our economic, social, cultural, and political lives.
The spatial distributions of inter- and circumstellar magnetic fields are commonly estimated from the polarization of visible and infrared light from stars; this polarization is considered to result from the magnetic alignment of the dust particles that are present in various regions (e.g. Spizer, 1978).
Each of the upper molars has three roots (two at the labial, or outer, side and one at the lingual, or inner, side) and each of the lowers has two onee at the front and one at the back); T. talamancae lacks the additional small roots that are present in various other oryzomyines, including species of Euryoryzomys, Nephelomys, and Handleyomys.
