3.3 and 3.4 Biodiversity

Multiple Choice

What are vulnerable or candidate species?

• not in immediate danger but could be soon

• species that are no longer endangered

• species that have already become extinct with no hope of coming back

• none of the above

Multiple Choice

Any species in which every last member has died. 

• Invasive

• Pest

• Extinct

• Weeds

Multiple Choice

If an organism is classified as _______________, then it no longer exists in the wild in a specific area.

• threatened

• extinct

• extirpated

• endangered

Multiple Choice

the breaking of habitats into smaller pieces is called...

• habitat division

• habitat pollution

• habitat corruption

• habitat fragmentation

Multiple Choice

How does habitat fragmentation reduce genetic diversity in species?

• Habitat fragmentation makes nonnative species introduction possible.

• Habitat fragmentation opens migration routes.

• Habitat fragmentation isolates a large population into smaller groups.

• Habitat fragementation encourages open gene flow.

Multiple Choice

A human activity that causes habitat fragmentation is

• Urban development

• soil erosion

• Desertification