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Ecosystems
chapter one
11
Biology
9th Grade
10/30/2012

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Term
Ecology
Definition
The study of the interactions of living organisms with one another and with their physical environment.
Term
Habitat
Definition
The place where a particular population lives.
Term
Community
Definition
The many different species that live together in a habitat.
Term
Ecosystem
Definition
Consists of a community and all physical aspects of a habitat.
Term
Abiotic Factors
Definition
The physical aspects of a habitat.
Term
Biotic Factors
Definition
The organisms in a habitat.
Term
Biodiversity
Definition
The variety of organisms, their genetic differences, and the communities and ecosystems in which they occur.
Term
Pioneer Species
Definition
The first organisms to live in a new habitat where their is soil that makes plants grow faster.
Term
Succession
Definition
A somewhat regular progression of species replacement.
Term
Primary Succession
Definition
Succession that occurs where life has not existed before.
Term
Secondary Succession
Definition
Succession that occurs in areas where there has been previous growth, such as abandoned field or forest clearings.
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