Apologia Marine Biology
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each of the black spaces below before clicking
on it to display the answer.
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| ecology | the study of the relationship between an organism and its environment
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| abiotic | the nonliving part of an environment
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| biotic | the living part of an environment
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| carrying capacity | the largest population size that can be supported by a specific area with its available resources
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| limiting resource | a factor required for a population to grow, but present in small quantities in an ecosystem
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| detritus | dead organic matter and the decomposing organisms living among it
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| productivity | the rate of photosynthesis carried on in an ecosystem
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| carbon fixation | the converting of inorganic carbon into useful organic carbon substances
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| nitrogen fixation | the converting of gaseous nitrogen into useful organic nitrogen substances
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| benthic | describing organisms that live on the ocean bottom
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| pelagic | describing organisms that live in the water column away from the ocean bottom
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| habitat | a specific place where an organism lives
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| population | a group of individuals of the same species that live together
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| community | all the populations of organisms living in the same area
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| ecosystem | composed of one or more communities, including the physical environment of a specific area
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| self-regulating population | a population prevents itself from excessive growth by using up available resources
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| intraspecific competition | competition among individuals of the same species
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| interspecific competition | competition among individuals of different species
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| predator | organism that eats another organism
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| prey | organism that is eaten by the predator
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| niche | all aspects of an organism's lifestyle - including eating habits, requirements for living space, reproductive strategy, behaviors
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| host | the first individual, usually the larger one, in a symbiotic relationship
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| symbiont | the second individual, usually the smaller one, in a symbiotic relationship
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| commensalism | one type of symbiosis where one species benefits from the relationship while the other is not affected
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| parasitism | one type of symbiosis where one species benefits from the relationship and the other is harmed
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| mutualism | one type of symbiosis where both organisms benefit from the relationship
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| zooxanthellae | tiny dinoflagellates that live in the tissue of coral
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| autotroph | organisms that get energy from their environment and use it to make their own food
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| heterotroph | organisms that get their energy from feeding on autotrophs or other heterotrophs
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| trophic relationship | food relationships
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| primary producers | organisms that make their own food
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| consumers | organisms that eat the primary producers
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| trophic level | each step in a food chain
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| food web | made up of many different food chains
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Created by:
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