Author Question: Saliva protects tooth surfaces and the linings of the mouth, esophagus, and stomach from attack by ... (Read 78 times)

bucstennis@aim.com · **on:** Aug 20, 2018

Saliva protects tooth surfaces and the linings of the mouth, esophagus, and stomach from attack by molecules that might be harmful.
a. True
b. False
Indicate whether the statement is true or false

Question 2

In general, the population of the Caribbean Islands would be described as ethnically homogeneous.
a. True
b. False
Indicate whether the statement is true or false