Bio Chapter 14
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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| habitat | the place where an organism usually lives
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| ecological niche | all of the physical, chemical, and biological factors that a species needs to survive, stay healthy, and reproduce in an ecosystem
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| competitive exclusion | the exclusion of one species by another due to competition
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| ecological equivalent | organisms that share a similar niche but live in different geographical regions
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| competition | ecological relationship in which two organisms attempt to obtain the same resource
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| predation | an interaction between two organisms in which one organism, the predator, kills and feeds on the other organism, the prey
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| symbiosis | a relationship in which two different organisms live in close association with each other
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| mutualism | a relationship between two species in which both species benefit
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| commensalism | a relationship between two organisms in which one organism benefits and the other is unaffected
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| parasitism | a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed
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| population density | measure of individuals living in a defined area
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| population dispersion | way in which individuals of a population are spread out over an area or volume
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| survivorship curve | graph showing the surviving members of each age group of a population over time
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| immigration | the movement of an individual or a group to a new community or region
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| emigration | the movement of an individual or group out of its native area
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| exponential growth | logarithmic growth, or growth in which numbers increase by a certain factor in each successive time period
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| logistic growth | population growth that starts with a minimum numbers of individuals and reaches a maximum depending on the carrying capacity of the region; described by an S-shaped curve
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| carrying capacity | the largest population that an environment can support at any given time
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| population crash | dramatic decline in the size of a population over a short period of time
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| limiting factor | environmental factor that limits the growth and size of a population
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| density-dependent limiting factor | environmental resistance that affects a population that has become overly crowded
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| density-independent limiting factor | environmental resistance that affects a population regardless of population density
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| succession | the replacement of one type of community by another at a single location over a period of time
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| primary succession | establishment and development of an ecosystem in an area that was previously uninhabited
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| pioneer species | a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established
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| secondary succession | reestablishment of a damaged ecosystem in an area where the soil was left intact
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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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