VDA#6 1. Scientists predict that prune fingers may serve a purpose. What purpose do they suggest prune fingers serve? Prune like fingers provide advantage to a persons'sby improving grip on wet slippery objects wrinkling of our digits offer a survival advantage.
2.Do you think that the study performed in England was a valid study? Why or why I agree with the scientist from England because they confirmed that there is a benifit to those clammy skin ridges experiment shows that our wrinkles improve our fingers ability to grasp wet, slippery objects. 3. How would you design an experiment to gather more data to support the suggestion that prune fingers serve a purpose? I took two pails of water and than I put one hand for fifteen minutes and than Iput the other hand for thirty minutes in the water. Than I noticed the hand which I put for thirty minutes had wtinkles like prune then I tried to grab soap with both hands. I was getting a better grip of soap with the wrinkled hand than the other one. 4. While scientists are attempting to determine the biological purpose for prune fingers, the article does not discuss why prune fingers happen in the first place. What biological process allows for the skin on our hands and feet to turn wrinkly when submerged in water for long periods of time? This reduction in volume pulls the skin inward, but as the skin's suface area cannot change, it wrinkles. This mechanism is controlled by the automatic nervous system, and the biological process is called osmosis.
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