Interactions of Life: Chap 1 Test Review

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Can you name the key terms?

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definitionterm
the studty of interactions among organisms in their environment
a symbiotic relationship in which one species benefits and the other is harmed
a model of the feeding relationships among organisms in an ecosystem
organisms that cannot make their own energy-rich molecules
a symbiotic relationship in which both species benefit
how an organism survives, including its habitat, and how it obtains food and shelter
Competition limits....
all the organisms in an ecosystem that belong to the same species
takes place when more than one organism seeks the same resource at the same time
help recycle once-living matter by breaking it down into simple, energy-rich compounds
The presence of _______________usually increases the number of species that can live in an ecosystem
any close relationship between species
definitionterm
a symbiotic relationship in which one species benefits and the other is not affected
In the relationship between a raccoon and a fish in the stream, the raccoon is the......
consumers that eat both plants and animals
organisms that use an outside energy source, such as the sun, to make energy-rich molecules
the part of Earth that supports life
Omnivores, herbivores, carnivores, and composers are all examples of...
anything that restricts the number of individuals in a population
the place in which an organism lives
all the organisms living in an area and the nonliving features of their environment
The water temperature is an example of ________feature
the largest number of individuals of one species that an ecosystem can support over time
all the populations in an ecosystem

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