blog 8

 Your choice talk about something you learned or ask a question about something that is confusing you

This quarter, one topic I learned about is the effect of population. Population is shaped by threee characteristics 1. Geographic Distribution 2. Density 3. Growth Rate. It can change by the number of births, deaths, and individuals that enter or leave the population area. It is usually measued by exponential and logistic growth. In exponential growth, the population reproduce at a constant rate, in contrast with logistic growth which occurs when a population's growth stops or slows.Carrying capacity is also used to display the average growth rate when it reaches zero, so the number represent the largest number of individuals that the enviroment can support.Population density is the number of individuals per unit area. It depends on the species and the ecosystem. Population density is seperated by two types of factors: density dependent factors and density IN dependent factors to limit the growth of a population. Density dependent factors are competition, predation,parasitism,and disease. Density independent factors are unusual weather, natural disaster, seasonal cycle, and  human activity such as clearing the forset or damming  the rivers.However, like many organisms, the size of human population increase during time.