False they do not contain mercury
When working properly, food/liquids moves to the esophagus then to the stomach
Answer:
school
Explanation:
not sure if it is correct
Answer:
B, False
Explanation:
There are many problems that our muscle system can face, like muscle disorders, which can cause pain, weakness and even paralysis. Our muscles are strong but they're not THAT strong.
Hope this helps! :)