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Chapter 1

Chapter 1. Bringing It all Together in Integrated Science. Sea Butterflies & Amphipods. Biology, Chemistry, and the Scientific Method . James McClintock (UA) & Bill Baker (USF) . Studying toxic chemicals used to deter predators Observed something very interesting.

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Chapter 1

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  1. Chapter 1 Bringing It all Together in Integrated Science

  2. Sea Butterflies & Amphipods Biology, Chemistry, and the Scientific Method

  3. James McClintock (UA) & Bill Baker (USF)

  4. Studying toxic chemicals used to deter predatorsObserved something very interesting

  5. Curious relationship between sea butterfly and amphipods • sea butterfly • amphipod YouTube - sea angel YouTube - Amphipods Playing!

  6. 1. Observation • Many amphipods carry sea butterflies on their backs.

  7. 2. Question Why are the amphipods “kidnapping” sea butterflies?

  8. 3. Hypothesize • The sea butterflies give amphipods a chemical defense

  9. 4. Predict • They would be able to isolate a toxic chemical from the sea butterfly • Fish that normally feed on amphipods would avoid this chemical

  10. 5. Test the Predictions

  11. These were good results, but…. • Were the fish reacting to a chemical from the sea butterflies? • or • Were the fish just reacting to the feel of the sea butterflies in their mouths?

  12. Controlled Experiment • Experiment that tests only one thing (variable) at a time. • Here they were looking for chemicals from sea butterflies

  13. Experiment #1 • Prepared plain fish food pellets • (no sea butterfly extract) • Control Pellets

  14. Experiment #2 • Prepared fish food pellets that contained sea butterfly extract • Experimental Pellets

  15. 6. Draw a Conclusion Sea butterflies produce a chemical deterrent.

  16. Looking Forward….. • Possible applications as a pest repellant • Can it be useful in treating in human diseases • Need much more study

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