The United States had the highest rate of obesity in the world, because ONE THIRD of its population is obese.
Obesity is a condition that is associated with having excess accumulated body fat, which can be deleterious to one's health. An individual is considered to be obese if the person's body weight is at least 20% more than it ought to be. Scientifically, obesity has been identified as the major cause of many chronic diseases such as diabetes mellitus, cardiovascular diseases, etc.
Hormones is the term you are looking for, but I may be wrong
Answer:
Diffusion
Explanation:
Substances like CO2 and water move into and out of a cell by diffusion from an area of high concentration to an area of low concentration.
Answer: A
Explanation: All living organisims use energy