digestion is when an organism takes in nutrients from food into itself by eating & eating food is used to get nutrients by animals ->  an animal eating food causes the food to be digested  an animal eating food causes the food to be digested & if something causes something else, then that something else occurs after that something ->  after food is eaten is it digested  if something is made of something else then that something contains that something else & if something is made of something else then that something can be broken down into that something else ->  if something contains something else then that something can be broken down into that something else  if something contains something else then that something can be broken down into that something else & digestion is when stomach acid breaks down food ->  when food is digested it is broken down into the things it contains  when food is digested it is broken down into the things it contains & food contains nutrients for living things ->  when food is digested it is broken down into nutrients  nutrients are simpler than food & nutrients are a kind of substance ->  nutrients are a kind of simple substance  when food is digested it is broken down into nutrients & nutrients are a kind of simple substance ->  when food is digested it is broken down into simple substances  after food is eaten is it digested & when food is digested it is broken down into simple substances -> after food is eaten is it digested into simple substances