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Understanding Population Dynamics: Key Concepts and Factors Affecting Human Population Growth

Explore the complexities of population dynamics, including vital concepts such as population density, growth rates, and limiting factors. This guide delves into density-dependent and density-independent factors, and differentiates between K-strategists and R-strategists in reproduction. Learn about critical demographic trends like immigration, emigration, carrying capacity, and the stages of demographic transition. This resource also features practical examples and test questions to enhance comprehension and application of population dynamics in real-world scenarios.

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Understanding Population Dynamics: Key Concepts and Factors Affecting Human Population Growth

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  1. Population Dynamics Limiting Factors Density Problems Human Population Actual Test Questions 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

  2. The number of organisms per unit area.

  3. Population Density

  4. The pattern of spacing of a population within an area.

  5. Dispersion

  6. The type of dispersion displayed by a herd animal such as American Bison.

  7. Clumped

  8. The type of growth model in which growth begins slow and then increases faster and faster. Shown by a J-Shaped Graph.

  9. Exponential

  10. The type of growth model in which the population grows slowly at first, followed by a period of rapid growth, and then the stabilizes at the carrying capacity. Shown with an S-Shaped Graph.

  11. Logistic

  12. Any factor in the environment that depends on the number of members in a population per unit area. (Disease, Competition, Parasites)

  13. Density Dependent

  14. Any factor in the environment that does NOT depend on the number of members per unit area. (Weather, Human Influence)

  15. Density Independent

  16. The type of reproductive strategists that produces few offspring and invests a lot of resources into each offspring. (Humans, Elephants)

  17. K-strategist

  18. The type of reproductive strategists that produce many offspring expending little energy to each. (Fruit Flies, Mosquitoes)

  19. R-strategist

  20. The maximum number of individuals in a species that an environment can support for the long term.

  21. Carrying Capacity

  22. The number of organisms moving IN to a population.

  23. Immigration

  24. The number of organisms moving OUT of a population.

  25. Emigration

  26. A term that explains how fast a given population grows.

  27. Population Growth Rate

  28. The number of organisms being born into a population.

  29. Natality

  30. A population of bees starts at 100. If the growth rate is an increase of 50 bees/year, how many bees will there be in the population after 5 years?

  31. 350 bees

  32. The study of human population, density, distribution, movement, and birth and death rates.

  33. Demography

  34. The number of males and females in each of three age groups: pre-reproductive stage, reproductive stage, and post-reproductive stage.

  35. Age Structure

  36. A population trend in which birth rates equal death rates .

  37. Zero Population Growth

  38. The largest factor causing an increase in the population of the united states.

  39. Immigration

  40. A change in a population from high birth and death rates to low birth and death rates.

  41. Demographic Transition

  42. The size of a population will decrease if mortality _________.

  43. Increases

  44. Density, distribution, and growth rate are characteristics used to classify which one of the following? A. BiomesB. PopulationsC. Limiting FactorsD. Age Structure

  45. B. Populations

  46. A flowering plant has seeds that are carried by the wind. Infer the most likely dispersion pattern of the plants that grow from these seeds.A. UniformB. Clumped GroupsC. RandomD. Spatial

  47. C. Random

  48. The human population growth rate has always increased. (True or False)

  49. False

  50. A fruit fly that has a short life span and produces many offspring can be classified into which reproductive strategy?A. r-strategistB. k-strategistC. a carrying-capacity strategistD. a logistic strategist

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