A drug company performed a study to test the effectiveness of a new headache medicine. The researchers grouped the patients
into two different groups. One group was given the pills that contained the new medicine. The other group were given pills that
did NOT contain the new medicine.
Why did the researchers NOT tell the patients which pill they were given?
A. to make sure they didn't get angry
B. to prevent errors in data collection
C. to keep people from leaving the study
D. to prevent bias in the data collection
Answers: 2
Biology, 22.06.2019 07:30, claudioocampo5621
What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.
Answers: 3
Biology, 22.06.2019 08:30, narwhalebearp5871i
Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass
Answers: 3
Biology, 22.06.2019 12:30, mattydoug4818
What is the most important inorganic material for livings things? ! due tomorrow!
Answers: 1
A drug company performed a study to test the effectiveness of a new headache medicine. The researche...
History, 19.05.2020 02:09
History, 19.05.2020 02:09
Social Studies, 19.05.2020 02:09
Chemistry, 19.05.2020 02:09
Biology, 19.05.2020 02:09