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Homework Help: Question regarding homeostasis in Daphnia

  1. Mar 3, 2009 #1
    I recently did a lab where i added a single grain of yeast to a water drop with a Daphnia. I was wondering how this experiment represents homeostasis. All i noticed was the Daphnia moved closer to the food source and pretty much burrowed inside of the granule.
  2. jcsd
  3. Mar 3, 2009 #2
    i think its because the daphnia wont have to move for food, so its stable and in its "best?" area.
  4. Mar 3, 2009 #3
    i dont really know how to explain it...but i know what it means...i dunno try to glean what you can off of my crappy explanation. :P
  5. Mar 3, 2009 #4
    So its response to the change in the environment is that it moves closer to the food source because this is the ideal position for it to feed. Also is this a negative or positive feedback loop. I don't think that really applies here because the change is not regulated internally.
  6. Mar 3, 2009 #5
    yep, and think that feedback loops dont apply in this condition, because a negative feedback loop would apply somewhere like your stomach for protein digestion, pepsin, pepsinogen and all the like :P
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