This study uses a computer model of cells to show how chemical signals and physical forces work together to control and keep the shape of tissues stable. The model tracks how cells grow, divide, and die in response to signal molecules that spread between cells and to the mechanical stress they feel from their neighbors. The results suggest that a feedback loop between these signals and tissue mechanics is needed for tissues to reliably reach and keep a target shape. The project also shows that self-organized signal patterns, like Turing-type systems, can guide tissue growth so that stable shapes form and can regrow after damage. Overall, the work gives a clear framework for studying how linked chemical and mechanical feedback can explain stable body and organ shapes during development and regeneration.