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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

Chapter 1

Bringing It all Together

in

Integrated Science


Sea butterflies amphipods

Sea Butterflies & Amphipods

Biology, Chemistry,

and the Scientific Method


James mcclintock ua bill baker usf
James McClintock (UA) & Bill Baker (USF)


Studying toxic chemicals used to deter predators observed something very interesting
Studying toxic chemicals used to deter predatorsObserved something very interesting


Curious relationship between sea butterfly and amphipods
Curious relationship between sea butterfly and amphipods

  • sea butterfly

  • amphipod

YouTube - sea angel

YouTube - Amphipods Playing!


1 observation
1. Observation

  • Many amphipods carry sea butterflies on their backs.


2 question
2. Question

Why are the amphipods “kidnapping” sea butterflies?


3 hypothesize
3. Hypothesize

  • The sea butterflies give amphipods a chemical defense


4 predict
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



These were good results but
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?


Controlled experiment
Controlled Experiment

  • Experiment that tests only one thing (variable) at a time.

  • Here they were looking for chemicals from sea butterflies


Experiment 1
Experiment #1

  • Prepared plain fish food pellets

  • (no sea butterfly extract)

  • Control Pellets


Experiment 2
Experiment #2

  • Prepared fish food pellets that contained

    sea butterfly extract

  • Experimental Pellets


6 draw a conclusion
6. Draw a Conclusion

Sea butterflies

produce a chemical deterrent.


Looking forward
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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