Question

unit 1 cumulative test (characteristics of life, biomolecules, cell structure and tran
35 of 42
a sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) ______
possible points
observation
variable
control
hypothesis

Explanation:

• Observation is the act of noticing or measuring, not matching this description.
• A variable is the factor being tested or changed, so it's not a group without the variable.
• A control group in an experiment is treated like other groups but without the independent variable, allowing comparison to see the variable's effect.
• A hypothesis is a proposed explanation, not a group in an experiment.

Answer:

C. control