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