PLEASE HELP ME! ILL MARK BRAINLIEST!

ExplanationA coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.

The answer is stable cells. This is the cells found in the bone and liver of the humans in which has the function to induced in order for it to replicate with the strong stimulus. They are also multiplied only when these cells are needed by the body.