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23 Cards in this Set

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  • Back
The process in which organisms change to survive in their environment.
natural selection
The behaviors and physical characteristics that allow organisms to live successfully in their
environment.
adaptations
The role of an organism in its habitat or how it makes its living.
niche
The struggle between organisms to survive as they attempt to use the same limited resource.
competition
An interaction in which one organism kills another for food.
predation
The organism that does the hunting, killing and eating.
predator
The organism that is killed and eaten.
prey
A close relationship between two species that benefits at least one of the species.
symbiosis
A symbiotic relationship in which both species benefit.
mutualism
A symbiotic relationship in which one species benefits and the other species is neither helped nor harmed.
commensalism
A symbiotic relationship where one organism lives on or inside another organism, harming it.
parasitism
The organism that benefits by living on or in another.
parasite
The organism that a parasite lives on or in.
host
A living thing.
organism
An environment that provides the things an organism needs to live, grow, and reproduce.
habitat
A living part of an organism’s habitat.
biotic factor
A nonliving part of an organism’s habitat
abiotic factor
The process in which organisms use water along with sunlight and carbon dioxide to make their own food.
photosynthesis
A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce.
species
All the members of one species in a particular area.
population
All the different populations that live together in an area.
community
The community of organisms that live in a particular area along with their nonliving surroundings.
ecosystem
The study of how living things interact with each other and their environment.
ecology