Biology Study Guide CH 5 Populations

  1. List three factors that play a role in population growth rate.
  2. List & describe the main characteristics of a population.
  3. Describe the relationship that exists between sea otters, kelp, sea urchin, & killer whales.
  4. ______-the # of individuals per unit area. How can this be “applied” or understood mathematically? Give an example.
  5. What does the range of a population tell you that density does not?
  6. ______-the movement of organisms INTO a given area from another area.
  7. ______-when organisms move OUT of the population.
  8. In terms of birthrate & death-rate, what must occur in order for a population to grow?
  9. In terms of birthrate & death-rate, what is happening in a population as it decreases?
  10. If Immigration & Emigration numbers remain equal, what is the most important contributing factor to a slowed growth rate?
  11. List two ways a population can decrease in size.
  12. When individuals in a population reproduce at a constant rate, it is called ______.
  13. ______-the various growth phases through which most populations go are represented this type of curve.
  14. As resources in a population become less available, the population reaches ______.
  15. In a logistic growth curve, exponential growth is the phase in which the population grows ______.
  16. When the exponential phase of a logistic growth curve of a population ceases, population growth begins to ______.
  17. A biotic or abiotic resource in the environment that causes a population size to decrease is a ______.
  18. List at least three limiting factors.
  19. What will reduce competition within a species population?
  20. If a population grows larger than the carrying capacity of the environment the death rate may ______.
  21. Define density dependent & density independent limiting factor…and list several examples of each.
  22. Define demography.
  23. ______is the change from high birth rates and high death rates to a low birth rate and low death rate.
  24. Countries in the first state of demographic transition have a ______death rate & a ______birth rate.
  25. A population can be characterized by its geograpbic distribution, density, growth rate, & ______.
  26. Under ideal conditions with unlimited resources, A population will grow ______.
  27. Using Science Skills chart with Population Statistics for the United States from 1900-1990…you will be using the table to answer questions.
  28. Using Science Skills will have three graphs. 2 of the graphs shows the growth rate vs days for 2 different microscopic organisms/cultures. The 3rd graph shows the same two types of organisms grown in a culture together. You will be asked to answer questions based on these graphs and the growth rates of these organisms. The names of the organisms are P. aureliaP. caudatum.

31 multiple choice questions, 2 completion, 2 using science skills with the chart, 2 using science skills with the graphs…total of 37 questions.