Chapter 2 Living Things Interact
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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| individual | A single organism in an environment
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| population | All the individuals of the same kind living in the same environment
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| community | All the populations of organisms living together in an environment
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| ecosystem | A community and its physical environment together
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| habitat | A place in an ecosystem where a population lives
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| niche | The role each population has in its habitat
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| producer | Organisms that make their own food
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| consumer | An organism in a community that must eat to get the energy it needs
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| food chain | The ways in which the organisms in an ecosystem interact with one another according to what they eat
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| decomposer | Consumers that break down the tissues of dead organisms
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| food web | Shows the interactions among many different food chains in a single ecosystem
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| energy pyramid | Shows the amount of energy available to pass from one level of a food chain to the next
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| competition | The contest among organisms for the limited resources of an ecosystem
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| symbiosis | A long-term relationship between different kinds of organisms
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| instinct | A behavior that an organism inherits
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| learned behavior | A behavior an animal learns from its parents
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| exotic | An imported or nonnative organism
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| extinct | No longer in existence; the result when the last individual of a population dies and that organism is gone forever
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| endangered | A population of organisms that is likely to become extinct if steps are not taken to save it
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| threatened | Describes a population of organisms that are likely to become endangered if they are not protected
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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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