Final answer:
The final deer population in Strongsville’s metro parks at the end of the year is calculated by starting with the initial count and considering births, deaths, immigration, and emigration. After accounting for all factors, the population at the end of the year is 310 deer, with option D) 309 deer being the closest answer provided.
Step-by-step explanation:
To calculate the deer population at the end of the year, we begin with the initial population and account for the birthrate, death rate, immigration, and emigration. The population of deer in Strongsville’s metro parks at the start of the year was 285. The birthrate was 56 and the death rate was 46, resulting in a net increase of 10 deer (56 - 46). Additionally, 35 deer immigrated and 20 emigrated, giving us a net immigration of 15 deer (35 - 20). To find the final population, we add the net changes to the initial population:
Final population = Initial population + Births - Deaths + Immigrants - Emigrants
Final population = 285 + 10 + 15 = 310 deer
Thus, the deer population at the end of the year was 310, making option D) 309 deer the closest correct answer (assuming the question has a small typo).