Collins I

• List and describe three levels of biodiversity

1. What does this picture represent?

2. What does this picture represent?

3. What type of diversity is shown here?

4. refers to the number of different species in an area

A. BiodiversityB. Genetic diversityC. DensityD. Dispersion

5. the known species is 1.7 million, most of them are

A. BeetlesB. BirdsC. ReptilesD. Insects

6. Many unidentified species may be in the

A. Remote wildernessB. OceansC. SwampsD. All of the aboveE. A & B only

7. number of different species in an area; also known as biodiversity

A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity

8. all of the different genes contained by the members of a population

A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity

9. variety of habitats, communities, and ecological processes

A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity

10. Species are part of these cycles

A. Food webB. Carbon cycleC. Nitrogen cycleD. All of the above

11. The ecosystem changes or collapses with out this species.

A. Critical speciesB. Endangered speciesC. Keystone speciesD. Dependent species

12. …are less likely to survive changes.

A. Large, isolated populationsB. Small, isolated populationsC. Large, crowded populationsD. Small, crowded populations

13. About 25% of the drugs prescribed in the United States come from

A. Remote wildernessB. OceansC. PlantsD. animals

Reasons Why We Should Preserve Biodiversity:

A. EthicsB. RecreationC. AestheticsD. All of the aboveE. A & B only

a species that is likely to become extinct if protective measures are not taken immediately

A. ExtinctB. ThreatenedC. EndangeredD. endemic

a species that has declining populations and is likely to become endangered

A. ExtinctB. ThreatenedC. EndangeredD. endemic

is when we break a habitat up into smaller parts.

A. Habitat destructionB. DeforestationC. PoachingD. fragmentation

As our population grows we build more homes and use more resources.

A. Habitat destructionB. DeforestationC. PoachingD. fragmentation

species that are not native to a particular region.

A. ExoticB. EndemicC. TransplantsD. foreign

These species may become________, meaning they take over, because they have no predators to control their populations.

A. EndemicB. ExoticC. EndangeredD. invasive

illegal hunting of a species

A. OverfishingB. OverhuntingC. PoachingD. trapping

Many countries now have laws to regulate

A. HuntingB. FishingC. HarvestingD. All of the above

species that are native to and found only within a limited area

A. ExoticB. NativeC. EndangeredD. endemic

scientists estimate that over half of the world’s species live there!

A. Coral reefsB. Deep oceansC. Coastal watersD. Tropical rainforest

occupy only a small fraction of the marine environment yet contain a majority of the oceans

biodiversity

A. IslandsB. Deep watersC. Coral reefsD. Costal watersE. C & D

The most threatened areas of high species diversity have been labeled

A. HotspotsB. EndangeredC. At riskD. Critical

Hotspots are mostly located in

A. RainforestB. Coastal watersC. IslandsD. None of the aboveE. All of the above