The second structure encountered in a biopsy

of the stomach is the
a. mucosa.
b. submucosa.
c. longitudinal muscle layer.
d. circular muscle layer.
e. serosa.


D

Biology & Microbiology

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Cadherins are transmembrane proteins that function in:

A. initiating differentiation of different cell types. B. oxygen transport. C. cell-cell adhesion. D. transport processes.

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Monoclonal implies that the

A) antibodies come from a twin. B) antibodies are identical. C) cancer cells are all of one type. D) antigens are from a single source.

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This arthropod is the vector for Lyme disease

a. spider b. tick c. wasp d. mosquito e. mites

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In true commensalism, both partners benefit.

Answer the following statement true (T) or false (F)

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