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6.3 notes.pdf - 6-3 Biodiversity 1 the sum total of the...

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16-3 Biodiversity
2the sum total of thegenetically based variety.IOW:it is the number ofdifferent species.
3123456789
4Biodiversity is one of Earth's greatestnatural resources.(non-renewable)More biodiversity meansmore for man.Foods(banana, hamburger)industrial products(dyes, wood)Medicine(aspirin, etc)More What?
5endangered species:A species with a declining populationthat is heading for extinction.FYI:The “USA endangered species act”makes it illegal to do anything that will harman endangered species.
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9Humans reduce biodiversityby causing extinctions.Humans cause extinctions by:1.Altering habitats2.Hunting (to excess)3.Pollution4.introducing foreign species tonew environments.
10Many types of pollution harmorganisms and can lead to extinction.DDTHot waterSmokeRadiationSound
11DDT(after being used) drains into rivers andstreams in low concentrations.For a long time DDT was consideredharmless (to everything except bugs).

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Term
Fall
Professor
Mr. Henderson

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