Page 1218 you may or may not have found support for

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You may or may not have found support for your hypothesis. If you did not find support for your
hypothesis, you probably need to revise your hypothesis and do another experiment. However, even if
you did find support for your hypothesis it is probably important to test whether the other variable
might also result in Simploid sickness. Repeat the experiment – if you started with herbicide, switch to
parasites or vice versa. Again avoid looking at them together – this will make it much harder for you to
write your lab report
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Here you should choose the opposite hypothesis from Question 8 above. Again avoid the combination
for now.
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14. Answer to Q2.12
To test my hypothesis about the cause of the Simploid sickness, I will vary the independent
(treatment) variable(s) Herbicide and nothing also across study plots. Plots in my control group
will have no herbicide
15. Answer to Q 2.13. So that you can compare your results directly with your previous experiment,
choose the same outcome here (e.g. if in Q2.7 you chose % Simploids sick, you should also
choose this here)
16. What are the potentially confounding variables that you will hold constant in this second
experiment?
17. In order to compare your results between experiments 1 and 2, what things should you make
sure are the same in both?

18. Describe your experimental design including the number of simploids/plants in each plot and
how many plots were treated with herbicide/pesticide. When you click Check your Setup, you
should get positive feedback. If not, try again until you have a solid setup.
19. How is this experimental setup similar to your setup in the first experiment? How does it differ.
the
21. What do your two experiments suggest is the cause of Simploid sickness.
Section 3: Graded questions
Answer these questions.