| A | B |
|---|
| The movement of organisms into a given area from another area is called ____. | immigration |
| When organisms leave a certain area, the movement is called ___. | emigration |
| For a population to grow, the ____ must be bigger than the ____ | birthrate must be larger than the deathrate (assuming no immigration or emigration) |
| The number of individuals per unit area is a population’s ____. | density |
| Logistic growth occurs when a population’s growth __________ , after a period of rapid growth. | slows down or stops |
| Under ideal conditions with unlimited resources, a population will grow _____. | exponentially |
Which type of population growth does this graph show?,  | This graph shows exponential growth, which only happens under ideal conditions with unlimited space, food and no predators., |
Which type of population growth does this graph show?,  | Logistic growth, |
| The scientific study of human populations is called ___. | demography |
| In human populations, ____ is a change from high birth rates and high death rates to low birth rates and low death rates. | demographic transition |
Which of these two age structure diagrams shows the typical human age structure of a typical third-world country?,  | A, |
| Which of these two age structure diagrams shows the typical human age structure of a first world modernized country?, | B, |
| The age structure diagram on the left shows a ____ birth rate and a ____ death rate., | high birth rate and high death rate., |
| The age structure diagram on the right shows a ____ birth rate and a ____ death rate., | low birth rate and low death rate., |
Which country below is likely to experience a decline in population due to its age structure?,  | Italy. Notice the small percentage of young people in the population. As they reach child-baring age, the countries birth rate is likely to fall. Conversely, Afghanistan has a large proportion of it's population in child-baring or soon to be child-baring age categories and will likely see rapid population growth unless war and famine cause the death rate to match the birth rate., |
Which survivorship curve would represent the human species? Which would represent a typical fish species?,  | Humans would be type one due to their fairly high infant survival rate. Fish would be type III because most lay many eggs and generally don't guard them or protect the juveniles, so most fish are eaten when they are small, if they even manage to make it out of their egg., |
| The maximum population size that can be supported by the available resources, symbolized as K. | carrying capacity |
| Referring to any characteristic that varies according to an increase in population density. | density-dependent |
| Referring to any characteristic that is not affected by population density. | density-independent |
| Disease is a _____ factor that limits population growth. | density dependent |
| Harsh winters would be considered as ______ factors that limit population growth. | density independent |
| What is the most likely explanation for a sharp spike in the death rate of a population? | Chuck Norris having a bad day.,  |
