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instability of government and political environment as well as civil war
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∙ 11y ago
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What are two factors that increase population size and two factors that decrease population size?
Increase: Survival and Immigration Decrease: Death and Emigration
How does emigration change into population size?
emigration
What are immigration and emigration and how do they affect population size?
Migration can increase population size by speading the animals (or people) over a wider area where there may be more resources. Migration (compression) into a single habitable area will increase the population density, but could cause either a numerical increase (more breeding) or a decrease (from limited resources).
Identify the four processes that determine population growth: immigration, birth, emigration, and death, and explain the impact of each on population size. (14.3)?
Immigration and birth increase the population size as they are bringing more individuals into the population. While death and emigration decrease the population because death kills off individuals while emigration is a process in which individuals leave/exit the population.
When the number of births plus immigration exceeds the number of deaths plus emigration will population size increase?
Yes. If there are more "coming" than there are "going" then the numbers increase.
The number of births is a process that affects population size Name three other process that also affect whether a population will increase or decrease in number?
I mmigration and emigration; birth and deaths
How is population size in an ecosystem determined by the relative rates of birth immigration emigration and death?
Birth and immigration both add individuals to a population, increasing the population size. Similarly, deaths and emigration remove individuals, reducing the population. So growth would be equal to the sum of immigration and births, minus the sum of emigration and deaths.
The rate at which population size grows or declines depends on the rate of what?
births, death, immigration and emigration
What will happen to each higher population size if the first level population were to dramatically increase?
The higher population size would also decrease. If the first level population decreased, the higher levels would have less to eat. This would cause the weaker organisms in the higher population group to die.
What does population influence?
Hey... Um-mm the answer is the two factor that affect population size is emigration and immigration. The diff of emigration and immigration is that emigration is when you leave some way for an ex Mexico, When Mexican leave there country they are emigrating. And when they come in to the US They are immigrate. :)
What are four factors that affect the size of population?
1) Death 2) Birth 3) Emigration 4) Immigration
Does emgration effect on population size?
That depends on the balance between birth rate, death rate and emigration rate
