Populations and Communities
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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| organism | a living thing
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| habitat | an environment that provides the things the organism needs to live, grow, and reproduce
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| biotic factor | the living parts of a habitat
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| abiotic factor | the nonliving parts of a habitat
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| photosynthesis | the process organisms using water and sunlight and carbon dioxide that make their food
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| species | a group of organisms that are physically similar and can mate with each other and produce offspring that can mate and reproduce
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| community | all the different populations that live together
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| ecosystem | the community of organisms that live in a particular area along with their nonliving surroundings
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| ecology | the study of how living things interact with each other and their environment
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| estimate | an approximation of a number based on reasonable assumptions
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| birth rate | the number of births in a population in a certain amount of time
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| death rate | the number of deaths in a population in a certain amount of time
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| immigration | moving into a population
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| emigration | leaving a population
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| population density | the number of individuals in an area of a specific size
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| limiting factor | an environmental factor that causes a population to decrease
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| carrying capacity | the largest population that an are can support
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| natural selection | a characteristic that makes an individual better suited to its environment may eventually become common in that species through this process
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| adaptations | the behaviors and physical characteristics that allow organisms to live successfully in their environment
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| niche | the role of an organism in its habitat or how it makes its living
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| competition | the struggle between to organisms to survive as they attempt to use the same limited resource
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| predation | the organism that does the killing
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| predator | the organism that does the killing
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| prey | the organism that gets killed
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| symbiosis | a close relationship between two species that benefits at least one species
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| mutualism | a relationship that benefits both species
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| commensalism | a relationship in which one species benefits and the other species is neither helped nor harmed
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| parasite | the organism that benefits from the parasite
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| host | the organism that the parasite lives inside
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| succession | the series of predictable changes that occur in a community over time
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| primary species | the series of changes that occur in an area where there is no soil or organism exists
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| pioneer species | the first species to populate the area
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| secondary succession | the series of changes that occur in an area where the ecosystem has been disturbed
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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.
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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:
mjbernhardt3
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