Points
the __is a group of organs used for breathing in oxygen and getting rid of
carbon dioxide.

Q1: what are the functions of your teeth and gums? q2: what are three ways that you can prevent problems with your teeth and gums? q3: relating cause and effect - people with periodontal disease sometimes stop brushing their teeth because their gums hurt. what effect do you think this will have on their oral health? explain. q4: evaluating – why do you think some people ignore simple steps such as brushing and flossing that can keep their teeth and gums health