Which of the following layers of the digestive tract is the only one that has direct contact with food

before it is digested?
a. serosa
b. longitudinal muscle
c. mucosa
d. submucosa
e. circular muscle


C

Biology & Microbiology

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The routine laboratory procedure used to classify the bacterial world into two major groups is called the _____.

Fill in the blank(s) with the appropriate word(s).

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