Which kind of study can establish a cause-effect relationship between variables, assuming that the research is appropriate and well conceived?
A. survey
B. case study
C. correlational study
D. experiment
Select your answer:
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Ecology › View
What is the most likely explanation of the data shown below?
A. There has been a drought in the area that is affecting all life forms.
B. The population of natural predators of the moths has gotten smaller.
C. The moths are living in an environment with light trees.
D. The moths are living in an environment with dark trees.
Enzymes and Their Functions › View
Which of the following statements is true about competitive inhibition?
A. The inhibitor binds to the enzyme at a site other than the active site.
B. The inhibitor competes with the substrate to see who gets to the binding site first.
C. The inhibitor permanently deactivates the enzyme.
D. The inhibitor increases the enzyme’s activity.