Answers to Scientific Inquiry

Here are the answers to the Scientific Inquiry assignment. Note that if your answers are not on this post, it does not mean you are incorrect!

  1.  TED Radio Hour segment with Margaret Heffernan
    What is or should be the control group in the chicken flock experiment? Explain.

The control group would be the random flock he had originally picked.  By picking a random group of chickens, he can get a good sense of the average amount of eggs his chickens can lay.

  1. Host Guy Raz and TED speaker Margaret Heffernan say that social scientists and business people use this experiment as a way to think about human behavior. Are they using inductive or deductive reasoning to do this? How?

                Inductive: They had used this specific experiment to use as an example  that pecking order should cease to exist in the business world.  Specific to Broad.

  1. Invasive Pythons Put Squeeze On Everglades’ Animals
    What is the hypothesis is Michael Dorcas examining?

The hypothesis is that Burmese pythons are the source of the decline in wildlife at the Florida’s everglades.
b. What evidence would support this hypothesis?

There has been a decline in over 90% of raccoons, possums, deer, bobcats.  Areas where there are more snakes there were less animals and where there were  less snakes, there were more  animals.
c. What evidence could falsify it?

            They did not see the pythons eating those animals, so they do not have clear evidence that this is the cause. This hypothesis could be falsified if it was discovered that there were viruses or other predators that were causing all the deaths.  Or if they found groups of these animals elsewhere because the pythons forced the native animals to  live in a different location.

  1. Monsanto Accused in Suit Tied to Agent Orange
    What hypothesis about the herbicide in question might be crucial in determining the outcome of this court case? Why?

They said that agent orange spread dioxins which were known to be a possible causation of cancer.
b. What evidence would support this hypothesis?
Hypothesis would be supported if all employees got the same cancer,  if they got it at the same time, since cancer takes some time to grow and develop. If a lot of people around the city got it too. Or if people who lived around the areas where it was sprayed developed cancer around the same time other people did too.  If people from other cities where Monsanto factories resided  had developed the same problems too.
c. What evidence could falsify it?
If nobody else in the town got cancer.
If peoples’ health issues were proven to be from other factors.

  1. Mother’s Pesticide Exposure Linked to Kids’ IQ

a. Children exposed  to common pesticides before birth can have lower IQ levels when they reach school age…”
Is this a hypothesis or theory or neither? Why?

Hypothesis: It is an observed correlation with minimal testing with some results which showed that it could be true.  There is little data to prove it true

b What are the dependent and independent variables involved?
Dependent variable: IQ
Inependent variable: whether mothers’ urine had pesticide metabolites.

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