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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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Jermain_ Jermain_
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10 years ago

 
Sea cucumbers have internal respiratory sacs called   
A)
 
respiratory trees.   
B)
 
papulae.   
C)
 
peristomia.   
D)
 
lungs.   
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padrepadre
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10 years ago
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Jermain_ Author
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#2
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10 years ago
Excellent answer, thank you padre.
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