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Chapter 1
Populations and Communities
| Question | Answer |
|---|---|
| organism | a living thing |
| habitat | a place were it is suitable for a organism to live |
| biotic factor | a living part of an organisms habitat |
| abiotic factor | a nonliving part of an organisms factor |
| photosynthesis | the process in which organisms use water along with sunlight and carbon dioxide to make food |
| species | a group of organisms that are phisically similar and can and can mate with each other and produce offsprings that can also mate and reproduce |
| population | all of the members of a species in a particular area |
| photosynthesis | the process in which organisms use water along with sunlight and carbon dioxide to make food |
| species | a group of organisms that are phisically similar and can and can mate with each other and produce offsprings that can also mate and reproduce |
| population | all of the members of a species in a particular area |
| community | all the different populations that live together in a area |
| photosynthesis | the process in which organisms use water along with sunlight and carbon dioxide to make food |
| species | a group of organisms that are phisically similar and can and can mate with each other and produce offsprings that can also mate and reproduce |
| population | all of the members of a species in a particular area |
| community | all the different populations that live together in a area |
| photosynthesis | the process in which organisms use water along with sunlight and carbon dioxide to make food |
| species | a group of organisms that are phisically similar and can and can mate with each other and produce offsprings that can also mate and reproduce |
| population | all of the members of a species in a particular area |
| community | all the different populations that live together in a area |
| ecosystem | the community of organisms that live in a particular area along with their nonliving surroundings |
| ecology | the study of how living things interact with each other and their environment |
| estimate | a approximation of a number, based on a reasonable assumptions |
| birth rate | the number of births in a population in a certain amount of time |
| death rate | the number of deaths in a population in a certain amount of time |
| immigration | moving into a population |
| emigration | leaving a population |
| population density | the number of individuals in a specific area |
| limiting factors | an environmental factor that causes a population to decrease |
| carrying capacity | the largest population that an area can support |
| natural selection | a process by which characteristics that make an individual better suited to its environment become more common to a species |
| adaptions | a behavior or physical characteristic that allows a organism to live successfully in its environment |
| niche | the role of a organism its habitat ,or how it makes its living |
| competition | the struggle between organisms to survive as they attempt to use the same limited resource |
| predation | a interactive in which one organism kills another for food |
| predator | the organism that does killing in a predation interaction |
| prey | the organism that gets killed and eaten by another organism |
| symbiosis | a close relationship between two species that benefits at least one of the species |
| mutualism | a relationship between two species in which both species benefit |
| commensalism | a relationship between two species in which one species benefits and the other is neither helped nor harmed |
| parasitism | a relationship in which one organism lives on or in a host and harms it |
| parasite | the organism that benefits by living on or in a host in a parasitism interaction |
| host | the organism that a parasite lives in or on in a parasitism interaction |