The large intestine concentrates undigested material by
A. absorption of salts and water across the epithelial surface of the lumen.
B. ingestion of excess salts and water by intestinal bacteria.
C. transporting excess salts and water back to the small intestine for absorption.
D. storing excess salts and water in the cecum.
A. absorption of salts and water across the epithelial surface of the lumen.
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Indicate whether this statement is TRUE or FALSE.
Srb and Horowitz’s research led to the ____ hypothesis, which has since been modified to the ____ hypothesis
a. one gene-one enzyme; one gene-one polypeptide b. one gene-one polypeptide; one gene-one enzyme c. one gene-one protein; one gene-one enzyme d. one gene-one polypeptide; one gene-one protein
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