In a scientific experiment, the control group ______.
A. serves as a basis of comparison with the experimental group
B. is subjected to the factor whose effect is being tested
C. allows for the simultaneous testing of multiple variables
D. is required for the validity of discovery science
Answer:A
In a scientific experiment, the control group ______.
A. serves as a basis of comparison with the experimental group B. is subjected to the factor whose effect is being tested C. allows for the simultaneous testing of multiple variables D. is required for the validity of discovery science