collins i list and describe three levels of biodiversity
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Collins I
• List and describe three levels of biodiversity
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1. What does this picture represent?
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2. What does this picture represent?
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3. What type of diversity is shown here?
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4. refers to the number of different species in an area
A. BiodiversityB. Genetic diversityC. DensityD. Dispersion
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5. the known species is 1.7 million, most of them are
A. BeetlesB. BirdsC. ReptilesD. Insects
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6. Many unidentified species may be in the
A. Remote wildernessB. OceansC. SwampsD. All of the aboveE. A & B only
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7. number of different species in an area; also known as biodiversity
A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity
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8. all of the different genes contained by the members of a population
A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity
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9. variety of habitats, communities, and ecological processes
A. Genetic diversityB. Ecosystem diversityC. Species diversityD. diversity
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10. Species are part of these cycles
A. Food webB. Carbon cycleC. Nitrogen cycleD. All of the above
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11. The ecosystem changes or collapses with out this species.
A. Critical speciesB. Endangered speciesC. Keystone speciesD. Dependent species
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12. …are less likely to survive changes.
A. Large, isolated populationsB. Small, isolated populationsC. Large, crowded populationsD. Small, crowded populations
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13. About 25% of the drugs prescribed in the United States come from
A. Remote wildernessB. OceansC. PlantsD. animals
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Reasons Why We Should Preserve Biodiversity:
A. EthicsB. RecreationC. AestheticsD. All of the aboveE. A & B only
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a species that is likely to become extinct if protective measures are not taken immediately
A. ExtinctB. ThreatenedC. EndangeredD. endemic
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a species that has declining populations and is likely to become endangered
A. ExtinctB. ThreatenedC. EndangeredD. endemic
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is when we break a habitat up into smaller parts.
A. Habitat destructionB. DeforestationC. PoachingD. fragmentation
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As our population grows we build more homes and use more resources.
A. Habitat destructionB. DeforestationC. PoachingD. fragmentation
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species that are not native to a particular region.
A. ExoticB. EndemicC. TransplantsD. foreign
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These species may become________, meaning they take over, because they have no predators to control their populations.
A. EndemicB. ExoticC. EndangeredD. invasive
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illegal hunting of a species
A. OverfishingB. OverhuntingC. PoachingD. trapping
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Many countries now have laws to regulate
A. HuntingB. FishingC. HarvestingD. All of the above
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species that are native to and found only within a limited area
A. ExoticB. NativeC. EndangeredD. endemic
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scientists estimate that over half of the world’s species live there!
A. Coral reefsB. Deep oceansC. Coastal watersD. Tropical rainforest
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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
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The most threatened areas of high species diversity have been labeled
A. HotspotsB. EndangeredC. At riskD. Critical
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Hotspots are mostly located in
A. RainforestB. Coastal watersC. IslandsD. None of the aboveE. All of the above