Glencoe Biology

Section 2: Threats to Biodiversity

Self-Check Quizzes-English

1
An event in which a large percentage of all species become extinct is called ____.
A)biodiversity shift
B)background extinction
C)mass extinction
D)evolutionary shift
2
Materials such as minerals, soil, fuels, and clean water are called ____.
A)bioelements
B)natural resources
C)heterotrophic resources
D)habitats
3
According to this table, which statement is true?
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A)More bird species have been lost than mammal species.
B)More mammal species have been lost than invertebrate species.
C)Birds have lost a higher percentage of species than mammals.
D)Fish have lost a higher percentage of species than reptiles.
4
What causes the edge effect in habitats?
A)eutrophication
B)destruction of habitat
C)biological magnification
D)fragmentation of habitat
5
Which organisms are affected most by biological magnification?
A)algae
B)plants
C)wolves
D)mice
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