Question

more experimental design practice
a cow is given a growth hormone and then compared to another cow that was not given a growth hormone. both cows were weighed at 2 years.
the independent variable is
the dependent variable is

Explanation:

The independent variable is the factor manipulated in an experiment. Here, the growth hormone (given or not) is the manipulated factor. The dependent variable is the outcome measured, which is the weight of the cows at 2 years, as it depends on whether the hormone was given.

Answer:

The independent variable is: Growth hormone (presence or absence)
The dependent variable is: Weight of the cows at 2 years