A biology student wants to conduct a study of how the amount of food affects weight gain for mice. He sets up four cages with a mouse in each cage. What are the independent variable, dependent variable, and constants? For the independent variable, what would you put in the box below for each mouse?

dependent variable is the weight (gain) - weight depends on the food being eaten.  The dependent variable "depends" on the independent variable, hence

independent variable is amount of food

the constant is the type of food.

Explanation:

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

c. the initial amount of money placed in the savings account