Question

heart muscle cells would tend to separate without ________. myofilaments stroma flana intercalated discs

Explanation:

Intercalated discs are specialized cell - to - cell junctions in heart muscle cells that hold the cells together and allow for synchronized contraction. Myofilaments are involved in muscle contraction but not cell - to - cell adhesion. Stroma is connective tissue and not relevant here. "Flana" is not a relevant biological term in this context.

Answer:

D. intercalated discs