7th grade vocab

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the slow development or replacement of an ecological community by another ecological community over time.

a series of stages that occur when an ecosystem is damaged but the soil is left intact, allowing for the original community to regrow.

includes any water environment and the community of organisms that live there.

an area of land that is saturated, or soaked, with water for at least part of the year.

The first organisms to live in an uninhabited area.

an event that changes an ecosystem.

a well-adapted species that has become dominant within an ecosystem.

the process in which organic matter and nutrients slowly build up in a lake or pond ecosystem