Question

which word element means glue?
-glia
-cyt
hyal-
strat-

Explanation:

The word - element "-glia" means glue. In medical and biological contexts, glial cells were originally thought of as the "glue" of the nervous system, providing support and protection to neurons. The other word - elements have different meanings: "-cyt" is related to cells, "hyal -" is related to glassy or clear substances like hyaluronic acid, and "strat -" is related to layers.

Answer:

O -glia