Population Growth. The butterfly is an example of a species where we would use the age-specific life table. A population is defined as a group of interbreeding organisms inhabiting the same region at the same time . In studying populations, demography, the study of the age structure of a population, is often considered.
Amador County is located in the Sierra Nevada Mountains of California. As of 2010, the population was 38,091. The county seat is Jackson. Amador County bills itself as The Heart of the Mother Lode and lies within the Gold Country.
Merced County, is a county located in the northern San Joaquin Valley section of the Central Valley, in the U.S. state of California. As of the 2010 census, the population was 255,793. The county seat is Merced. The county is named after the Merced River. Merced County comprises the Merced, CA Metropolitan Statistical Area, which is included in the Modesto-Merced, CA Combined Statistical Area. It is located north of Fresno County and Fresno, and southeast of Santa Clara County and San Jose.