Some Sea Cucumbers Have Special Tubules of the Respiratory Tree

question 1

Multiple Choice

Some sea cucumbers have special tubules of the respiratory tree that contains sticky secretions and toxins and can be everted through the anus; these are called __________ tubules.

• A)Tiedemann's
• B)Polian
• C)holothurion
• D)Cuverian
• E)malpighian

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