Life Tables
| Description: Life Tables Quiz | |
| Number of Questions: 14 | |
| Created by: Aliensbrain Bot | |
| Tags: ecology life tables population ecology |
What is a life table?
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A table that shows the age-specific survival and mortality rates of a population.
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A table that shows the age-specific birth and death rates of a population.
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A table that shows the age-specific growth and decline rates of a population.
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A table that shows the age-specific immigration and emigration rates of a population.
A life table is a table that shows the age-specific survival and mortality rates of a population. It is used to study the mortality patterns of a population and to make predictions about the future size and composition of the population.
What is the difference between a cohort life table and a period life table?
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A cohort life table follows a group of individuals born in the same year over their lifetime, while a period life table follows a population at a single point in time.
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A cohort life table follows a population at a single point in time, while a period life table follows a group of individuals born in the same year over their lifetime.
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A cohort life table follows a group of individuals born in the same year for a fixed period of time, while a period life table follows a population at a single point in time for a fixed period of time.
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A cohort life table follows a population at a single point in time for a fixed period of time, while a period life table follows a group of individuals born in the same year for a fixed period of time.
A cohort life table follows a group of individuals born in the same year over their lifetime, while a period life table follows a population at a single point in time. Cohort life tables are more accurate than period life tables, but they are also more difficult to construct.
What is the life expectancy of a population?
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The average number of years that an individual in a population is expected to live.
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The average number of years that an individual in a population is expected to live if they survive to age 1.
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The average number of years that an individual in a population is expected to live if they survive to age 5.
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The average number of years that an individual in a population is expected to live if they survive to age 10.
The life expectancy of a population is the average number of years that an individual in a population is expected to live. It is calculated by taking the sum of the products of the age-specific survival rates and the corresponding age intervals, and then dividing by the total number of individuals in the population.
What is the infant mortality rate?
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The number of deaths of infants under one year of age per 1,000 live births.
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The number of deaths of infants under one year of age per 100,000 live births.
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The number of deaths of infants under one year of age per 1,000,000 live births.
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The number of deaths of infants under one year of age per 10,000,000 live births.
The infant mortality rate is the number of deaths of infants under one year of age per 1,000 live births. It is a measure of the health of a population and the quality of its healthcare system.
What is the crude death rate?
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The number of deaths per 1,000 people in a population.
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The number of deaths per 100,000 people in a population.
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The number of deaths per 1,000,000 people in a population.
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The number of deaths per 10,000,000 people in a population.
The crude death rate is the number of deaths per 1,000 people in a population. It is a measure of the overall mortality of a population.
What is the age-specific death rate?
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The number of deaths at a specific age per 1,000 people in a population.
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The number of deaths at a specific age per 100,000 people in a population.
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The number of deaths at a specific age per 1,000,000 people in a population.
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The number of deaths at a specific age per 10,000,000 people in a population.
The age-specific death rate is the number of deaths at a specific age per 1,000 people in a population. It is a measure of the mortality of a population at a specific age.
What is the total fertility rate?
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The average number of children that a woman in a population is expected to have over her lifetime.
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The average number of children that a woman in a population is expected to have if she survives to age 15.
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The average number of children that a woman in a population is expected to have if she survives to age 20.
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The average number of children that a woman in a population is expected to have if she survives to age 25.
The total fertility rate is the average number of children that a woman in a population is expected to have over her lifetime. It is calculated by taking the sum of the products of the age-specific fertility rates and the corresponding age intervals, and then dividing by the total number of women in the population.
What is the net reproduction rate?
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The average number of daughters that a woman in a population is expected to have over her lifetime.
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The average number of daughters that a woman in a population is expected to have if she survives to age 15.
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The average number of daughters that a woman in a population is expected to have if she survives to age 20.
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The average number of daughters that a woman in a population is expected to have if she survives to age 25.
The net reproduction rate is the average number of daughters that a woman in a population is expected to have over her lifetime. It is calculated by taking the sum of the products of the age-specific fertility rates and the corresponding age intervals, and then dividing by the total number of women in the population.
What is the replacement level fertility rate?
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The total fertility rate that is required to maintain a stable population size.
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The total fertility rate that is required to increase the population size by 1% per year.
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The total fertility rate that is required to decrease the population size by 1% per year.
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The total fertility rate that is required to stabilize the population size at its current level.
The replacement level fertility rate is the total fertility rate that is required to maintain a stable population size. It is calculated by taking the sum of the products of the age-specific fertility rates and the corresponding age intervals, and then dividing by the total number of women in the population.
What is the doubling time of a population?
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The amount of time it takes for a population to double in size.
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The amount of time it takes for a population to increase by 1% per year.
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The amount of time it takes for a population to decrease by 1% per year.
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The amount of time it takes for a population to stabilize at its current level.
The doubling time of a population is the amount of time it takes for a population to double in size. It is calculated by taking the natural logarithm of 2 and dividing it by the annual growth rate of the population.
What is the carrying capacity of a population?
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The maximum population size that can be supported by a given environment.
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The minimum population size that can be supported by a given environment.
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The average population size that can be supported by a given environment.
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The stable population size that can be supported by a given environment.
The carrying capacity of a population is the maximum population size that can be supported by a given environment. It is determined by the availability of resources such as food, water, and shelter.
What is the logistic growth model?
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A mathematical model that describes the growth of a population that is limited by environmental factors.
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A mathematical model that describes the growth of a population that is not limited by environmental factors.
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A mathematical model that describes the decline of a population that is limited by environmental factors.
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A mathematical model that describes the decline of a population that is not limited by environmental factors.
The logistic growth model is a mathematical model that describes the growth of a population that is limited by environmental factors. It is a sigmoid curve that has an initial period of rapid growth, followed by a period of slower growth, and finally a period of no growth.
What is the exponential growth model?
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A mathematical model that describes the growth of a population that is not limited by environmental factors.
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A mathematical model that describes the growth of a population that is limited by environmental factors.
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A mathematical model that describes the decline of a population that is not limited by environmental factors.
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A mathematical model that describes the decline of a population that is limited by environmental factors.
The exponential growth model is a mathematical model that describes the growth of a population that is not limited by environmental factors. It is a straight line that has a constant growth rate.
What is the difference between a life table and a population pyramid?
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A life table shows the age-specific survival and mortality rates of a population, while a population pyramid shows the age distribution of a population.
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A life table shows the age distribution of a population, while a population pyramid shows the age-specific survival and mortality rates of a population.
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A life table shows the age-specific fertility and mortality rates of a population, while a population pyramid shows the age distribution of a population.
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A life table shows the age distribution of a population, while a population pyramid shows the age-specific fertility and mortality rates of a population.
A life table shows the age-specific survival and mortality rates of a population, while a population pyramid shows the age distribution of a population. Life tables are used to study the mortality patterns of a population and to make predictions about the future size and composition of the population. Population pyramids are used to visualize the age distribution of a population and to identify potential problems such as an aging population or a declining population.