BIOM 121Bang, Michel (Christofer)2011 FallWeek 1Lecture 1January 11Scientific Method and Amphibian Decline(Week 1)Why are Amphibians Declining? Habitat destruction Introduced species Over-Exploitation Climate Change UV-B radiation Chemical contaminants Disease Deformities SynergismsWhat causes deformities?Observation has been made flatworms are living amongst Amphibians in ponds.Hypothesis: Flatworms are the cause of deformities. Testable ExplanationPrediction: If the parasites are causing deformities, frogs with deformities should have More parasites than frogs Without. Framed within experiment Connect hypothesis to specific outcomesCompare: Results showed that tadpoles exposed to one flatworm parasite had more deformities and lower survival than tadpoles not exposed.Answer: Data support hypothesis: Presence of flatworms can explain deformities in amphibians.Results: Amphibians are declining because of DeformitiesTaxa Domain KingdomThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Phylum Class Order Family Genus SpeciesVocabularyCorrelation: two variables co-occur in some wayPositvie Correlation: The number starts Low then Increases overtime Negative Correlation: The number start High then Decreases overtimeIndependent Variable (IV)- The factor that is varied/manipulatedDependent Variable (DV) - The factor that changes when IV changes-it is dependent on the IVExample: If a vitamin could extend a person’s life, then the IV is the amount of vitamins that is given to the person within the experiment.The DV of the affected IV in this case, is the life span.Archaea (Prokaryote)-Live in extreme environments (hot, salty, acidic, etc)Bacteria (Prokaryote)- Most common single-celledEukarya (Eukaryotic)- Any organism with nucleated cells; Maybe unicellular or
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