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 factors | the living parts of a habitat
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Abiotic factors | are the nonliving parts of an organism's habitat
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Photosynthesis | The process in which organisms use water along with sunlight and carbon dioxide to make their own 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 also mate and reproduce.
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Population | All the members of one species in a particular area.
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Community | All the different populations that live together in an area.
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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 a specific area.
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Limiting factors | An environmental factor that causes a population to decrease.
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Carrying capacity | The largest population that an area can support.
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Nature selecton | A process by which characteristics that make an individual better suited to its environment become more common in a species.
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Adaptations | A behavior or physical characteristic that allows an organism to live successfully in its environment.
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Niche | The role of an organism in its habitat, or how it makes its living.
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Computition | The struggle between organisms to survive as they attempt to use the same limited resource.
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Predation | An interaction in which one organism kills another for food.
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Predator | The organism that does the killing in a predation interaction.
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Prey | An organism that is killed and eaten by another organism.
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Sumiusis | A close relationship between two species that benefits at least one of the species.
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Mutualism | A relationship between two species in which both species benefit.
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Commenalism | A relationship between two species in which one species benefits and the other is neither helped nor harmed.
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Parasitism | A relationship in which one organism lives on or in a host and harms it.
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Parasite | The organism that benefits by living on or in a host in a parasitism interaction.
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Host | The organism that a parasite lives in or on in a parasitism interaction.
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Succesion | The series of predictable changes that occur in a community over time.
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Primary succesion |
The series of changes that occur in an area where no soil or organisms exist.
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Pioneer species | The first species to populate an area.
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Secondary succesion |
The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist.
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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:
jsat2
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