The phrase "are interspersed in a" is correct and usable in written English.
It can be used when describing how elements are scattered or distributed throughout a particular context or setting.
Example: "The colorful flowers are interspersed in a lush green garden, creating a vibrant atmosphere."
Alternatives: "are scattered throughout a" or "are mixed within a".
Most tracts make up the small footprint of a row house and are interspersed in a line of occupied homes, their small size making them unattractive to developers.
In the extracellular matrix of cartilage, aggrecan hyaluronic acid complexes are interspersed in a collagen meshwork and provide the osmotic properties required to resist deswelling under compressive load.
Similarly, Snapchat released its first "snapvertisements," which are interspersed in a user's story feed and disappear forever after a single viewing just like ordinary messages.
The study was carried out in Ebro Valley (northeastern Spain), a 10 500 km2 dry plain where patches of steppe vegetation are interspersed in a matrix of prevailing cereal cultivations.
The long cells are interspersed in a regular manner by short cells of two types, cork cells and silica cells.
High- and low-activity counties are interspersed in a patchwork such that, prior to any Marcellus activity, the two data sets should have shown similar but not necessarily identical trends.
Tunics and shifts that wittily referred to Gertrude Stein and Alice B. Toklas were interspersed in a parade of military ponchos, capes, gauchos and Navy berets.
Ten high-Se and nine low-Se S. pinnata grown as described above were interspersed in a 50 cm × 50 cm area on a greenhouse bench.
CD133+VIM+ co-expressing cells were interspersed in a similar fashion throughout the healthy tubules; in human acute renal damage biopsies, these were expanded into long stretches of CD133+VIM+ cells, suggesting that they expanded during regeneration.
A very small volume fraction of nanocrystalline grain with size of approximately 1 5 nm is interspersed in an amorphous matrix.
Scenes of Hilson performing in front of a leather-like wall are interspersed in between her and her friends riding down a boulevard to the club.
