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The process in which organisms use water along with sunlight and carbon dioxide to make their own food
A behavior or physical characteristic that allows an organism to live successfully in its environment
A relationship between two species in which one species benefits and the other in neither helped nor harmed
The struggle between organisms to survive as they attempt to use the same limited resource
A process by which characteristics that make an individual better suited to its environment become more common in a species
The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist
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