Chapter 5 Vocabulary Flashcards Preview

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Flashcards in Chapter 5 Vocabulary Deck (9)
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1

Extinction

When the last member of a species dies

2

Biodiversity

The variety of life in an area that is determined by the number of different species in that area

3

Background extinction

The gradual process of species becoming extinct

4

Mass extinction

An event in which a large percentage of all living species become extinct in a relatively short period of time

5

Overexploitation

The excessive use of species that have economic value

6

Habitat fragmentation

The separation of an ecosystem into small pieces of land

7

Edge effects

The different environmental conditions that occur along the boundaries of an ecosystem

8

Biological Magnification

The increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or food web

9

Eutrophication

Destroys underwater habitats for fish and other species