Question #6422551Single Choice
Biology
Question
Researchers are testing the effect of a particular hormone on the growth of fish. They inject different concentrations of the hormone into three groups of fish (Group X, Group Y, and Group Z) and measure their growth over a month. A fourth group (Group W) is injected with a saline solution.
Which group is the negative control?
Options
A
Group X
B
Group Y
C
Group Z
D
Group W
Answer & Analysis
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