Question

Sophia wanted to know if Vitamin E would help people to lose weight. While doing background research, she discovered lab mice were similar to humans and decided to use them for her experiment. She selected 10 similar mice and divided them into two groups of five. She carefully measured and recorded the weight of each mouse at the beginning of the experiment. Sophia mixed 50 mL of liquid Vitamin E in the food for the mice in Group A and 50 mL of pure water in the food for the mice of Group B. Each group was placed in the same size cage and fed at the same time each day. Each group was exercised on an exercise wheel for 10 minutes each day and the weight of each mouse was measured and recorded once a week for six weeks. Sophia's dependent variable is
A: Exercise amount
B: Vitamin E usage
C: Group B
D:Group A
E: Weight amount

Answer 1

A: Exercise amount

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