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nlexa [21]
3 years ago
9

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. t

he 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
Biology
1 answer:
yulyashka [42]3 years ago
4 0
The controlled variable is what stays the same . So it’s C . They are given different amounts but the same food.
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