Question

B. Which of these populations probably experienced more births than deaths over the first

five years? (1 point)


Think about how growth rates relate to birthrates and death rates.

Answer 1

A population that has a higher birth rate than a death rate will experience a net increase in size, indicating more births than deaths over a given period. The growth rate can be predicted by subtracting the death rate from the birth rate, and demographic transition affects these rates over time.

Step-by-step explanation:

To determine which population experienced more births than deaths over the first five years, one should understand the relationship between birth rates and death rates as they pertain to population growth. If the birth rate is higher than the death rate within a given population, it means the number of individuals being born is greater than the number of individuals dying. This results in a net increase in the population size over time.

Factors that affect population growth include birth rates and death rates, as well as immigration and emigration. In the absence of migration, the simple way to predict the change in population size is using the equation: growth rate = birth rate − death rate. Therefore, a population with a birth rate that exceeds the death rate will have a positive growth rate, which indicates more births than deaths have occurred over that period.

Populations experiencing demographic transitions often show distinct stages of growth. In the early stages, death rates may fall faster than birth rates, resulting in rapid growth. Over time, if the birth rate declines and approaches the death rate, the population growth will slow down and may eventually stabilize.

Answer 2

A population with a higher birth rate than death rate over five years experienced greater population growth. The growth rate formula (birth rate – death rate) determines this, with factors such as demographic transitions and age demographics influencing future potential for growth.

Step-by-step explanation:

To determine which population experienced more births than deaths over the first five years, we need to look at the respective growth rates. The population that had a higher birth rate compared to its death rate would show an overall increase in population size. This is because the growth rate is calculated using the simple equation: growth rate = birth rate – death rate.

Historically, as seen in stages of demographic transitions, the lowering of death rates, especially in children, leads to a larger gap between births and deaths. This widens the birth rates, thereby increasing the population growth rate more quickly. For a population experiencing more births than deaths, we would observe a net positive addition to the population.

Furthermore, if we look at age demographics, a population with a higher proportion of people in the childbearing or younger age groups would likely have the potential for more births, thus indicating future population growth. It's important to remember that immigration and emigration can also affect population size but are separate from the birth and death rates.

As an example, if a country's death rate is 15 per 1,000 people but the birth rate is 35 per 1,000 people, this results in a net growth rate of 20 per 1,000 people. In percentage terms, assuming no immigration or emigration, this would be a 2% increase per year.