One tank of goldfish is feed once a day, a second tank twice a day, and a third tank four times a day during a six-week study. the fishes' body fat is recorded. what is a controlled variable?

a. body fat of fish

b. type of goldfish

c. amount of food

d. number of times fish are feed/day

Question

23 January, 09:05

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Stephen Snow · Answer 1

The controlled variable is what stays the same. So it’s C. They are given different amounts but the same food.

One tank of goldfish is feed once a day, a second tank twice a day, and a third tank four times a day during a six-week study. the fishes' body fat is recorded. what is a controlled variable?a. body fat of fishb. type of goldfishc. amount of foodd. number of times fish are feed/day