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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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Presentation Transcript
chapter 1

Chapter 1

Bringing It all Together

in

Integrated Science

sea butterflies amphipods

Sea Butterflies & Amphipods

Biology, Chemistry,

and the Scientific Method

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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