Callosobruchus moculotus probably evolved to develop on cowpeas (blackeye peas).

Question

Callosobruchus moculotus probably evolved to develop on cowpeas (blackeye peas). However, they can develop and growto adulthood on adzuki, mung, garbanzo beans, green peas, and lentils. A student was interested in determining how the different beans affect the time that it takes eggs to grow to adulthood (emergence). The student took mated females from a stock culture that had lived on cowpeas for 50 generations. Individual female beetles were allowed to oviposit on either cowpeas, adzuki, garbanzo, or mung beans. The student then monitored the time it toolk for the newly laid eggs to develop and emerge as adults. What is the independent variable in this study? is this variable quantitative or categorical? 2 What is the dependent variable in this study? is this variable quantitative or categorical? What is an appropriate hypothesis for this experiment? 4. What is an appropriate prediction for this experiment? 5. Identify the different treatment groups If there is a control treatment group, identify it. 6. List two potentially confounding variables that the student would need to control. 7. Why it is important to control potentially confounding variables in an experiment? 8. Why is important to have replicates in a scientific study

Explanation / Answer

Answer:

1) What is the independent variable in this study? Is this variable quantitative or categorical?

2) What is the dependent variable in this study? Is this variable quantitative or categorical?

3) What is an appropriate hypothesis for this experiment?

4) What is the appropriate prediction for this experiment?

5) Identify the different treatment groups. If there is a control treatment group, identify it

6) List two potentially confounding variables that the student would need to control.

7) Why it is important to control potentially confounding variables in an experiment?

8) Why is important to have replicates in a scientific study?

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