Multiple Choice
Metanephridia, which are open tubes with funnels,
A) occur in all polychaete worms.
B) are part of the vascular system of annelids.
C) are only repeated in very few segments in oligochaete worms.
D) occur in all oligochaetes and leeches.
E) occur in earthworms and contains the respiratory pigment.
Correct Answer:

Verified
Correct Answer:
Verified
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