Dependent variable: The amount of food a fish eats (as it depends on the color of food ans it may increase, decrease or change with increase, decrease or change in the color of food).
Independent variable: Color of the food (as it does not depend on any other factor).
Hypothesis: There can be two hypothesis:
1) The amount of food a fish eats gets change with the change in color of food.
2) Color of food has no effects on the amount of food a fish eats.
Food color have Absolutely no effect <span>on the amount of food fish eat</span>. Fish take food into their mouths and taste it. If they do like it, they swallow it, otherwise they will spit it out. The color of the flakes has nothing to do on what the fish takes in and tastes.
I'm presuming you mean the three different subcatagories or taxa as there around 25/26 mammalian orders. The three taxa are - Prototheria or Monotreme = Mammals that lay eggs Metatheria Marsupial = Mammals with external development pouches.
