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Ecology Vocabulary

Across
Organisms compare for the limited number of biotic and abiotic factors
All the different populations that live together in an area
The study of how living things interact with each other and their environment
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
The largest population that an area can support
Organisms that return nutrients to the soil and break down dead organisms
Series of events in which one organism eats another
Down
The first species to populate an area
A symbiotic relationship in which one organism benefits and the other is unaffected
Moving into a population
An animal that eats only other animals
The part of the earth, including air, land, surface rocks, and water, within which life occurs
The pattern of overlapping food chains in an ecosystem. A model of feeding relationships
All the living and non-living things that interact in an area
An organism that obtains energy by feeding on other organisms