Biology Chapter 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Population Density | the number of individuals per unit area
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Immigration | the movement of individuals into an area
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Emmigration | the movement of individuals out of an area
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Exponential growth | occurs when the individuals in a population reproduce at a constant rate
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Logistic growth | occurs when a population's growth slows or stops following a period of exponential growth
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Carrying capacity | the largest number of individuals that a given environment can support
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Limiting factor | a factor that causes population growth to decrease
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Density-dependent limiting factor | a limiting factor that depends on population size
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Predator-prey relationship | one animal kills another animal for food
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Density-independent limiting factors | Ex. unusual weather, natural disasters, seasonal cycles, and certain human activities such as damming rivers affect everyone
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Demography | the scientific study of human populations
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Demographic transition | a dramatic change in birth and death rates
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Age-structure diagrams | show the population of a country broken down by gender and age group
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Winkels
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