Ecology, Mr. Bruton
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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| Abiotic factor | The nonliving parts of an organism’s environment.
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| biological community | is made up of interacting populations in a certain area at a certain time.
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| biosphere | is the portion of Earth that supports living things. It extends from high in the atmosphere to the bottom of the oceans.
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| biotic factor | All the living organisms that inhabit an environment
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| commensalism | is a symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited.
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| Ecology | is the study of interactions that take place between organisms and their environment.
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| ecosystem | is made up of interacting populations in a biological community and the community’s abiotic factors.
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| Habitat | is the place where an organism lives out its life.
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| Mutualism | A symbiotic relationship in which both species benefit
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| niche | is 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.
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| Parasitism | A symbiotic relationship in which a member of one species derives benefit at the expense of another species
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| Population | is a group of organ- isms, all of the same species, which interbreed and live in the same area at the same time.
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| Symbiosis | The relationship in which there is a close and permanent association between organisms of different species
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| Autotroph | An organism that uses light energy or energy stored in chemical com- pounds to make energy-rich compounds is a producer
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| Biomass | is the total weight of living matter at each trophic level.
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| Decomposer | break down the complex compounds of dead and decaying plants and animals into simpler molecules that can be more easily absorbed.
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| Food Chain | is a simple model that scientists use to show how matter and energy move through an ecosystem.
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| Food Web | shows all the possible feeding relationships at each trophic level in a community.
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| Heterotroph | An organism that cannot make its own food and feeds on other organisms
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| Trophic Level | Each organism in a food chain rep- resents a feeding step
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