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BIO 1070-Inquiry Case 1-3 notes.docx

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BIOL 1070
Wright& Newmaster

BIO 1070 Inquiry Case 1 UNIT 1 Zebra mussels were native to the Caspian see and the Black seaThey were most likely transported here by the ballasts tanks of linersThe zebra mussel was first discovered in 1988 in lake St ClaireAround the world there are over 850 different species of musselsWithin North America there are 300 known speciesThere are 41 species of mussels in OntarioLife cycle of a mussel Unionids perform obligate parasitism meaning that they release there eggs on another species of fish Males release their sperm through the exhalant siphon and the females take in the sperm with their inhalant siphon Fertilization is internal and the embryos developed inside sacs called the marsupiumThe embryos then mature into Glochidia and must be attached to the gills of a fish host to continue to growThe mantle tissue of the mussel can be in the shaoe of a smaller fish this allows for the bigger fish to go up close and get bitten by the musselAt this time the mussel releases its glochidia and they attach to the gills of the host UNIT 2Levels of biological organization High to lowDomainKingdomPhylum ClassOrderFamilyGenusSpecies Domain refers to organisms with eukaryotic cells Kingdom refers to animalsPhylum refers to vertebrates Class refers to mammalsOrder refers to PrimatesFamily refers to HominidaeGenus refers to Homo Species refers to Humans Genotype same set of genes Phenotype differing physical featuresPhenotypic Plasticity when the same set of genes can cause differing physical features according to environmental conditionsAbundance number of individualsDiversity number of species Disparity how physically different two species are Genetic Variation difference among individuals within among a species Tree Thinking
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