A number of forces can cause gene mutations, such as smoking, radiation, viruses, cancer-causing chemicals (carcinogens), obesity, hormones, chronic inflammation and a lack of exercise.
The sample must have a high probability of representing <span>the population.</span>
An independent variable is a variable that does not rely on the other. a dependent variable depends on the independent variable to change. as you change the independent, the dependent variable changes. also I believe pepsi or coke has the most caffeine
