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Ecology
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Predatory interactions occur when __________________________.
One organism preys on another.
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Mutualism is a relationship in which _______________?
Both organisms benefit
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Competitive interactions occur when _______________________.
Two organisms compete over a shared resource.
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What is the highest level of organization?
Biosphere
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Commensalism is a relationship in which _____________________.
One organism benefits and one organism neither benefits or is harmed.
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What is the carrying capacity?
The largest number of individuals of the same species that an area can support
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What are abiotic factors?
Non-living
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What is the lowest level of organization?
Organism
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What are biotic factors?
Living
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What is an example of an abiotic factor that limits an organism in its environment?
temperature, soil, sunlight, water
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What is an ecosystem?
All of the abiotic and biotic factors in an area
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Parasitism is a relationship in which ________________.
One organism benefits and one organism is harmed.
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What are limiting factors?
abiotic or biotic factors that limit the number of organisms that can live in an ecosystem
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What is biodiversity?
All of the different organisms that inhabit one area
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Decomposers are organisms that ___________________.
get their energy from breaking down dead organisms or waste.
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What determines the carrying capacity of an ecosystem?
Limiting factors
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Consumers are organisms that ______________________________.
Eat to obtain energy (eat producers).
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When resources are plentiful, competition _________________.
decreases
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What is a community?
All of the interacting populations in a specific area
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If the amount of prey increases what happens to the number of predators?
increases
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What is a population?
all of the members of one species living in the same area
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Producers are organisms that ________________.
make their own food.
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What is a parasite?
An organism that lives off a host organism.
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