Multiple Choice
One clade of polychaetes, the pogonophorans,
A) were discovered in the nineteenth century.
B) live in high densities in shallow waters.
C) have a well-developed digestive tract.
D) can harbor bacteria that oxidize hydrogen sulfide.
E) are thought to be the ancestor of clitellates.
Correct Answer:

Verified
Correct Answer:
Verified
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