Independent and Dependent Variables Scenarios (Manipulated) (Responding) Scenarto 1. 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 2. Mosquito repailent is sprayed on one arm and the other arm is not sprayed The number of mosquito billes is counted after 2 hours. 3. One grape is placed in tap water and another grape is placed in salt water. The change in their mass is measured after a day Independent. or. DEPENDENT​