Stimuli and Response: Sea Monkey Adventures

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Stimuli and Response Sea Monkey Adventures

• Sara Parr
• Sigrid Smith
• Dec. 7, 2006

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www.beloblog.com/.../08/the_worlds_ugli.html ,
nivel13.blogsome.com/.../
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www.guidedogsofamerica.org, www.innocentenglish.co
m/cute-animals/index.html , www.hemmy.net/.../cute
-animals-photo-gallery-01/
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Stimuli

• What is a stimulus (pluralstimuli)?
• What kind of stimuli have you received this
  morning?
• How did you detect them?
• Why do animals respond to stimuli?

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Sea Monkeys (Brine Shrimp)

• Brine shrimp are tiny - just 10 millimeters long
  - but they play a big part of the salt pond
  ecosystem.Brine shrimp thrive in salt ponds
  where salinity measures 80 to 190 parts per
  thousand (8 to 19 percent), where there are
  plenty of algae to eat and few predators and
  competitors.
• www.virtualsciencefair.org/.../picture.html,
  www.microimaging.ca/animal/17shrimp.html,

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Shrimp lifecycle is short, so they must respond
to changes very fast!

• ut.water.usgs.gov/shrimp/

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Your job is to design an experiment testing the
response of brine shrimp to stimuli

• Form groups of 2-3, and think of a list of
  stimuli you think they would respond to.
• Chose one, and design an experiment to test your
  hypothesis.
• After you complete your experiment, present your
  results to the other groups.

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Ground rules

• Be respectful of the animals.
• Design must be approved before you begin your
  experiment.