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BioooVocab
test tuesdayy!
| Question | Answer |
|---|---|
| abiotic factor | the nonliving parts of an organism's environment |
| biological community | made up of interacting populations in a certain area at a certain time |
| biosphere | the portion of Earth that supports living things |
| biotic factors | all the living organisms that inhabit an environment |
| commensalism | a symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited |
| ecology | the study of interactions that take place between organisms and their environment |
| ecosystem | made up of interacting populations in a biological community and the community’s abiotic factors |
| habitat | the place where an organism lives out its life |
| mutualism | a symbiotic relationship in which both species benefit |
| niche | all strategies and adaptations a species uses in its environment-how it meets its specific needs for food and shelter, how and where it survives, and where it reproduces |
| parasitism | a symbiotic relationship in which a member of one species derives benefit at the expense of another species (the host) |
| population | a group of organisms, all of the same species, which interbreed and live in the same area at the same time |
| symbiosis | the relationship in which there is a close and permanent association between organisms of different species |
| autotroph | an organism that uses light energy or energy stored in chemical compounds used to make energy-rich compounds |
| heterotroph | an organism that cannot make its own food and feeds on other organisms |
| decomposer | organisms that break down the complex compounds of dead and decaying plants and animals into simple molecules that can be more easily absorbed. |
| food chain | a simple model that scientists use to show how matter and energy move through an ecosystem |
| trophic level | feeding step in the passage of energy and materials |
| food web | shows all the possible feeding relationships at each trophic level in a community |
| biomass | the total weight of living matter at each trophic level |
| climax community | a stable, mature community that undergoes little or no change in species |
| limiting factor | any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms |
| primary succession | the colonization of barren land by communities of organisms |
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