Why is it important that an experiment include a control group?
A) The control group is the group that the reseacher is in control of; it is the group in which the researcher predetermines the nature of the results.
B) The control group provides a reserve of experimental subjects.
C) A control group is required for the development of an "if; then" statement.
D) A control group assures that an experiment will be repeatable.
E) Without a control group, there is no basis for knowing if a particular result is due to the variable being tested or to some other factor.
Rutherford's gold foil experiment demonstrating that most of the volume of an atom is empty spa
Examples of structures in which extensive surface area is important for function.
Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and
ABO Blood Reactions Are Important in Transfusions
Control of Respiration
Production of ABO blood group antigens