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pssa vocab unit 6

pssa vocab

QuestionAnswer
evolution A process of change that explains why what we see today is different from what existed in the past; it includes changes in the galaxies, stars, solar system, earth and life on earth.
extinction The complete elimination of a species from the earth.
Endangered species A species that is in danger of extinction throughout all or a significant portion of its range.
Equilibrium The ability of an ecosystem to maintain stability among its biological resources (e.g., forest, fisheries, crops) so that there is a steady optimum yield
Sustainability The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained.
Succession The series of changes that occur in an ecosystem with the passing of time.
Created by: 21perch.jav
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