- A researcher is investigating if online resources improve student grades. What is the control group in this experiment?
- DNA plays a central role in which of these processes?
- 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?
- Surviving and producing more offspring because they have advantageous inherited traits, is the process of
- Which of the following is not a scientific claim?
- A researcher is investigating if online resources improve student grades. What is the dependent variable?
- 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
- 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?
- 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
- A researcher is investigating if online resources improve student grades. What is the independent variable?
- Biology is classified as a
- The core concept of evolution is: _________________
- 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
- A product includes anecdotal evidence of its effectivness. Many satisfied customers...
- Wich of the following is not a proper scientific investigation?
