To maintain the current population density, which of the following must occur?
a. The death rate must be higher than the birth rate.
b. The birth rate must be higher than the death rate.
c. The birth rate and death rate must stay the same with migration at 0.
d. The birth rate and death rate must stay the same while migration can continue to rise.
It's actually
C
C
A
I tried @cool's answers but I got number 1 wrong, thanks for trying to help though :)
Bat is riiiiight! Sheeesh you da best
Right.
thx bat
C
C
A
100%
What is your thinking on this? Think about the answers.
B
C
A
These are the correct Answers 100%
To determine which option is correct, we need to understand the concept of population density and how it is influenced by various factors.
Population density is a measure of the number of individuals within a specific area or region. It is typically calculated by dividing the total population in an area by the total land area. Population density can change over time due to several factors, including birth rate, death rate, and migration.
Now let's analyze the given options:
a. The death rate must be higher than the birth rate.
If the death rate exceeds the birth rate, it means that more individuals are dying than being born. This scenario would lead to a decrease in the total population over time, resulting in a lower population density. Therefore, option a is incorrect for maintaining the current population density.
b. The birth rate must be higher than the death rate.
If the birth rate exceeds the death rate, it means that more individuals are being born than dying. In this case, the population would increase over time, leading to a higher population density. Therefore, option b is also incorrect for maintaining the current population density.
c. The birth rate and death rate must stay the same with migration at 0.
If the birth rate and death rate remain constant, and there is no migration (i.e., no individuals moving into or out of the area), then the population would neither increase nor decrease. This scenario would result in the population density remaining the same over time. Therefore, option c is correct for maintaining the current population density.
d. The birth rate and death rate must stay the same while migration can continue to rise.
If the birth rate and death rate stay the same, but migration continues to increase, then additional individuals are moving into the area. This influx of individuals would lead to an increase in the total population and, subsequently, an increase in population density. Therefore, option d is incorrect for maintaining the current population density.
In conclusion, to maintain the current population density, the birth rate and death rate must stay the same with no migration (option c).