Multiple Choice
Which of the following statements best illustrates bias in scientific investigations?
A) Researchers studying heron nests notice that some baby herons fall out of nests and are killed.
B) An experiment testing the effect of a new drug has only one control group.
C) Investigations of the cause of AIDS are limited by our inability to see viruses.
D) Investigations of the health effects of smoking are funded and published by a tobacco company.
Correct Answer:

Verified
Correct Answer:
Verified
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