21. While the synagogue is now considered viable, its aging structure is in continuous need of repair. 22. Other purposes of performing age structure analysis are growth analysis, population dynamics estimates and resource management. 23. The site raised curiosity in 2005 when Saar Ganor discovered impressive Iron Age structures under the remnants. 24. A lengthy battle to save the aging structure was fought with the Japanese government in the 1990s. 25. During the 20th century, declining fertility and improved life expectancy in later life significantly changed age structures . 26. Age structure affects population size because it determines how many adults there will be in the future,27. During the twentieth century, declining fertility and improved life expectancy in later life significantly changed age structures . 28. The bridge was made of wood, but modifications added concrete and steel parts to strengthen the aging structure . 29. Scales are the most widely used aging structure in North America because of their non-lethal ease of collection. 30. The single-lane, aging structure , now owned by the commission, served the local residents well into the new century.
