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Which statement best describes thr changes in the age and sex composition of the u.s. population?
Wiki User
∙ 9y ago
The largest 5-year age groups in 2000 was age 35 to 39 years.
Wiki User
∙ 9y ago
The U.S. population is aging as the proportion of older adults increases due to factors like increased life expectancy and the aging baby boomer generation. Additionally, there is an ongoing shift towards a more gender-balanced population, with women slightly outnumbering men in recent years.
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What is a change in the genetic composition of a population of organism over a period of time?
A change in the genetic composition of a population of organisms over time is known as evolution. This occurs through processes such as natural selection, genetic drift, and gene flow, leading to changes in allele frequencies in a population's gene pool. These changes can result in the emergence of new traits, species, and adaptations.
Does a parameter ever change for a set population?
No, a parameter is a fixed value that describes a characteristic of a population. It does not change for a set population. Parameters are typically determined by conducting a study or analysis of the population.
What statement is true about the population of nation?
The statement that is true about the population of a nation is that it represents the total number of individuals living within the specific geographic boundaries of that country. Population size can impact various aspects of a nation, such as its economy, social services, and political representation. Tracking population trends is essential for understanding demographic changes and planning for the future.
What is ecology How do population dynamics affect ecology?
Ecology is the study of interactions between organisms and their environment. Population dynamics, the study of changes in population size and composition, have a direct impact on ecology as they influence factors such as competition for resources, predator-prey relationships, and species diversity. Changes in population size can lead to shifts in ecosystem structure and function, affecting the overall balance of the ecosystem.
What is meant by the statement Populations evolve individuals don't?
This statement refers to the fact that evolution occurs at the level of populations over generations, with changes in allele frequencies leading to evolution. It emphasizes that individual organisms do not evolve within their lifetimes, as they do not change genetically, but rather it is the population as a whole that evolves.
What statement best describes the change analysis technique?
The analysis of any changes in operation that may have caused the accident.
What are the uses of demography in public health?
to primarily measure the size of a population , composition and attribution and changes in the number of pe0ple
Which event describes a change where evolution has happened?
An allele frequency changes in a population.
What changes a rock's composition?
Chemical Changes
The demographic transition model describes changes in?
Birth rates, death rates, and population growth over time.
Chemistry is primarily concerned with the composition of and changes in what?
The composition of everything and transfer of electrons. Changes in bonding and structure of compounds.
Which statement correctly describes the changes in Europe caused by World War1?
The map of Europe had changed significantly because many nations' borders had changed.
Physical changes do not changes the original what of matter?
Chemical composition
What are phyisical changes?
Changes that occur when the composition remains the same
Does the Statement of Comprehensive Income explain changes in Equity?
No, that is explained on the Statement of Changes in Owner's Equity. However, you do need to prepare a Statement of Comprehensive Income first in order to prepare the Statement of Changes.
What properties refer to a substance's ability to undergo changes that alter its composition and identity?
Chemical changes
The study of matter composition and how it changes?
Chemistry
