The independent variable is what will change. The dependent variable is what will change because of the independent variable. The controlled variable is what will stay the same.
Ex, for the first one.
IV: the amount of sunlight
DV: plant growth
CV: pea plant
For #2.
IV: the soda
DV: the amount of sugar
CV: soda
And so on
Species A : 2N = 24, N = 12
Species B : 2n = 26, n = 13
During the hybridization N + n = 25
I think B is the answer The Clean Air Act That prevented air pollution and protected the ozone layer as well as promote public health. This act gave Enviromen. Protection Agency the power to take effective action fighting environmental air pollution
