If eating chocolate affects total calorie consumption, then increasing the amount of chocolate a person eats will increase the amount of weight a person gains.

which term is the dependent variable?

Weight of a person is the dependent variable.

Explanation:

Dependent variable is defined as the variable whose value changes with respect to any other variable.

Independent variable is defined as the variable which remain as such and has no effect on the change of another variable. For Example: Time

According to the equation:

The weight of a person is increasing as the amount of chocolate consumption is increasing.

So, here the independent variable is chocolate consumption and the dependent variable is weight of the person.

of those who start drinking before they're 15 will develop alcohol dependence

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.