Final answer:
A red giant star develops several concentric zones of active shell fusion as its core contracts and heats up, causing hydrogen fusion to occur in a shell surrounding the helium core.
Step-by-step explanation:
The type of star that eventually develops several concentric zones of active shell fusion is a red giant. As the star evolves, its core contracts and heats up, causing hydrogen fusion to occur in a shell surrounding the helium core. This fusion in the shell leads to the expansion of the outer layers of the star, creating multiple layers of active fusion.
A red giant star develops several concentric zones of active shell fusion as its core contracts and heats up, causing hydrogen fusion to occur in a shell surrounding the helium core.