VDA#6

1. Scientists predict that prune fingers may serve a purpose. What purpose do they suggest prune finger serve? Scientist predicts that prune finger may serve a purpose because it improves our fingers’ ability to grasp wet, slippery objects.

2. Do you think that the study performed in England was a valid study? Why or why not?

Yes, I think the study preformed in England was valid study because the experiment include control group, before and after result and I believe it was repeated more than one to prove the result and it also include variables.

3. How would you design an experiment to gather more data to support the suggestion that prune fingers serve a purpose? (Be sure to include the number of people sampled, the independent and dependent variables and the duration or amount of time for your experiment.)

For this experiment I would have 20 volunteers. I would have regular temperature water for the volunteers to submerge their hands in. each individual participant well have both of their hand submerged in the water. Each participant well soak there hand in the water for about 30 min. after the process is done they would use both of their hands to move objects such as glass, cardboard box and a ball. I well time how long it takes each participant to place the object from one place to other. I well time them for about 5min depending on how far the place is. On the next day I would have the same volunteers but this time both of their hands well be dry, they well do the same process as the one before. Then I well compare the result for each experiment. My independent variable is Freshwater. My dependent variables would be the time that was set for the volunteers to put an object from one place to another.
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?

The biological process that allows for the skin on our hand and feet to turn wrinkly when submerged in water for a long period of time is osmosis.

 

VDA#3

http://www.youtube.com/watch?feature=player_embedded&v=8mFzCAYoLVs

 

 

1. How long does nature take to produce fuel?

The formation of oil takes millions of years. The process in the formation is when deceased bodies escapes the decomposition they are buried inside the earth which further they undergo reaction and they result in formation of oil.
2. How long does it take Solazyme to produce fuel?

It takes a few days for solazyme to produce fuel.

3. Where is Solazyme currently located?
Solazyme was currently located in peoria Illionis.