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BIO 220 Exam 3 GCU Questions and Correct Answers | Latest Update

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genetic diversity  measures variety of different versions of same genes within a species species diversity  measures number of different kinds of organisms within a community ecological diversity  measures richness and complexity of a community fragmentation/cloning  aspens, less...

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  • October 3, 2024
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Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025


BIO 220 Exam 3 GCU Questions and
Correct Answers | Latest Update
genetic diversity


 measures variety of different versions of same genes within a species




species diversity


 measures number of different kinds of organisms within a community




ecological diversity


 measures richness and complexity of a community




fragmentation/cloning


 aspens, less genetic diversity




species richness


 total number of species in a community




species evenness


 relative abundance of individuals within each species



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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025




reproductive isolation


 organisms that breed in nature and produce fertile offspring




phylogenetic species concept


 emphasizes the branches on a taxonomic tree (cladistic relationships)




evolutionary species concept


 defines species in terms of evolution and historic terms




DNA sequencing and other molecular techniques


 give insight into taxonomic and evolutionary relationships




biodiversity hotspots


 tropical rainforests and coral reefs




Benefits of biodiversity in food


 wild plants could provide new sources of food or more genetic diversity

for existing crops




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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025




benefits for drugs and medicine


 more than half of all modern medicines contain some natural product from

a wild species




pharmaceutical companies


 actively prospect tropical countries for products




Biopiracy


 Resources often extracted without compensation




sharing profits


 provides an incentive to preserve native species




ecological benefits


 Soil formation, waste disposal, air and water purification, nutrient cycling,

solar energy absorption, and biogeochemical and hydrological cycles all

depend on biodiversity. We do not fully understand biological

communities. Loss of a seemingly insign ificant species can be damaging




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