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It depends on whether the purpose is to study current or past trends. The timeframe can be a guide: over a couple of generations, it's likely to be plain demography to inform the present; over a century or more, it's more likely historical demography to understand the past.
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Based on the theory of evolution of a population possesses a large amount of genetic variety what level of variety can be expected in the future for that same population?
The population will increase in variety over time.
What is the study of the abundance of organisms?
The study of the abundance of organisms in a specific area is known as population ecology. It focuses on understanding the factors that influence population size, distribution, and dynamics over time. Population ecologists study how births, deaths, immigration, and emigration affect population growth and overall abundance.
The scientific study of human population is called?
Demography is the scientific study of human population, including factors such as birth rates, death rates, and migration patterns. It allows for the analysis and projection of population trends and patterns over time.
What would be the most effective in changing the frequency of certain traits in a population over time?
natural selection. -study island.
What would be most effective in changing the frequency of certain traits in a population over time?
natural selection. -study island.
Can a cross sectional study be a descriptive study?
Yes, a cross-sectional study can be a descriptive study as it involves collecting data at a single point in time to describe a population or phenomenon. It focuses on determining prevalence or association between variables at that specific time without following individuals over time.
What characteristics of populations do demographers study?
Demographers study characteristics such as population size, age structure, birth and death rates, migration patterns, fertility rates, and population density. These characteristics help demographers understand population dynamics and trends over time.
Why is it important for historians to study historiography?
To understand how the study of history has changed over time
Which are the Differences between population dynamics and demography?
Population dynamics is considered a form of demography. Demography is the study of statistics of human populations. Population dynamics focuses on how those populations change over time, specifically.
What do scientists often use to study micro evolution?
Scientists often use genetic analysis, population genetics, and observations of changing traits over generations to study microevolution. These methods help scientists understand how small-scale changes in gene frequencies occur within a population over time.
When to apply sampling?
you can use sampling when your population under study is large, expensive and time time consuming to study.... in a nut shell, when studying entire population is expensive we go for sampling...
What are ecological Oscillations?
cycles in population size over time; repeating changes in population size over time
