Cows can derive nutrients from cellulose because
A. they produce the enzymes that break down cellulose.
B. they chew their food so thoroughly that cellulose fibers are broken down.
C. their intestinal tract contains cellulose-hydrolyzing microorganisms.
D. they convert cellulose into starch, which is easily broken down in the intestinal tract.
Answer:C
Cows can derive nutrients from cellulose because
A. they produce the enzymes that break down cellulose. B. they chew their food so thoroughly that cellulose fibers are broken down. C. their intestinal tract contains cellulose-hydrolyzing microorganisms. D. they convert cellulose into starch, which is easily broken down in the intestinal tract.