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A researcher is investigating if online resources improve student grades. What is the control group in this experiment?

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  • A researcher is investigating if online resources improve student grades. What is the control group in this experiment? 
  1. DNA plays a central role in which of these processes? 
  2. Antibiotics are very heavily used in surgical wards to prevent infections that often take hold after surgery. What would you predict might be true of surgical areas in hospitals? 
  3. Surviving and producing more offspring because they have advantageous inherited traits, is the process of 
  4. Which of the following is not a scientific claim? 
  5. A researcher is investigating if online resources improve student grades. What is the dependent variable? 
  6. Some of the chemicals that make up living organism have only few structures (like DNA) other have many different structures (like proteins). Why might this 
  7. To test the effectiveness of an allergy drug, scientists begin with a pool of 12,000 allergy sufferers. One randomly selected group of 6,000 subjects is given the drug, and the other 6,000 are given a pill without the active ingredient. They are asked to report their allergy symptoms after 1 week, 1 month, and 3 months of treatment, and samples are also taken to measure the levels of histamines (allergy-related compounds) in the blood. What group is receiving the experimental treatment in this study? 
  8. You listen to a researcher present his data to a group. After the presentation a few members of the audience question his results and analysis. This most likely 
  9. A researcher is investigating if online resources improve student grades. What is the independent variable? 
  10. Biology is classified as a 
  11. The core concept of evolution is: _________________ 
  12. Angela wonders whether an “energy drink” is really effective. Before her morning run, she downs a can. On that run she feels better and runs further than she ever has before. After that, she is convinced that the drink works and 
  13. A product includes anecdotal evidence of its effectivness. Many satisfied customers...
  14. Wich of the following is not a proper scientific investigation?

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