Earthworms have multiple hearts that pump blood throughout the body in vessels.They also ingest soil,digest the organic matter,and eliminate the indigestible particles as castings.Earthworms have which of the following?
A) An incomplete digestive tract and closed circulatory system
B) A complete digestive tract and open circulatory system
C) A complete digestive tract and closed circulatory system
D) An incomplete digestive tract and open circulatory system
Correct Answer:
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