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chapter 1
population and communities
| Question | Answer |
|---|---|
| organism | a living thing |
| habitat | a place that provides the things that organisms need to live grow and reprodoce |
| biotic factor | a living part of an organisms habitat |
| abiotic factor | a nonliving part of an organisms habitat |
| photisynthisis | the process in which organisms use water along with sunlight and carbon dioxide to make their food |
| species | a group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce |
| populatioin | all the members of one species in a particular area |
| community | all different population that live together in a area |
| ecosystem | the community of organism that live in particular area along with thier nonliving surroundings |
| ecology | the study of how living things interact with each other and thier environment |
| estimate | is an approximation of a number bassed on reasonible assumptions |
| birth rate | number of births in a population in a certain amont of time |
| death rate | number of deaths in a population in a certain amont of time |
| immtgration | moving into a population |
| emigration | leaving a population |
| population density | the number of individuals in a specific area |
| limiting factor | 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 enviorment become more common in a species |
Created by:
wnewberg
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