When an experiment has a large sample size, and there is a large difference between the results in the experimental and control groups, how likely is it that the experimental results are statistically significant?
A) very unlikely
B) unlikely
C) somewhat likely
D) very likely
D
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A person who has just experienced a painful sunburn has a large number of cells undergoing mitosis for the purpose of
A. developing new stem cells that will give rise to new skin cells. B. repairing and replacing the damaged cells, in the healing process of the skin. C. replication of new DNA copies, so that meiosis will further grow new skin cells. D. modifying new cells that will have different specialties than the original damaged cells. E. asexual reproduction, to produce new skin buds that will fold over and cover the burn.
What is the purpose of the "control" in a controlled experiment?
What will be an ideal response?
In your lab, you notice that pea plants that were given a mixture of water and fertilizer have grown nearly three times as tall as pea plants that were given water only. This step of the scientific method is called:
A) stating a law. B) making an observation. C) drawing a conclusion. D) conducting a critical experiment. E) formulating a theory.
Which class of drugs interferes with the virus inserting itself into host DNA?
A. Protease inhibitors B. Reverse transcriptase inhibitors C. Integrase inhibitors D. Fusion inhibitors E. All of the choices are correct.