The brown stuff is called plaque. This forms on your teeth when you eat and its something you can't get rid of. There is tooth paste that can help maintain it.
Answer:
exercise and eat better, do things that you enjoy, notice something that you like about yourself and focus on that
Explanation:
Im pretty sure the first one is cells, theyre basically what make us.
the second one may be muscles but im not entirely sure.
but the third one should be jobs or function. different cells can do different things
Answer:
General anesthesia or specifically Regional anesthesia
Explanation:
