A student is interested in how the number of fish treats affects the speed of fish. She has 4 fishbowls. She places 3 fish in each bowl. She places each fishbowl under the same amount of light. She keeps the water temperature at 75°F for all four bowls. She places ¼ teaspoon of regular fish food in each bowl. Finally, She places 2 fish treats in the first bowl, 4 fish treats in the second bowl, 6 fish treats in the third bowl, and no fish treats in the fourth bowl. Then, she then observes and measures the speed of the fish.1) What is the independent variable?2) What is the dependent variable?3) What is the control?4) What is a constant?