11. The main way in which new individuals join a population. being born dying ) immigration emigration

## Step 1The question is asking about the primary method by which new individuals join a population. The options provided are: being born, dying, immigration, and emigration.## Step 2Being born is a method of population increase, but it is not the main way. This is because being born is a natural process that happens within a population, but it does not involve the movement of individuals from one population to another.## Step 3Dying is not a method of population increase. In fact, it is a method of population decrease.## Step 4Emigration is a method of population decrease. This is because emigration involves individuals leaving a population to live elsewhere, which reduces the population size.## Step 5Immigration is the main way in which new individuals join a population. This is because immigration involves individuals moving into a population from another location, which increases the population size.