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

Question

Quizplus · Accepted Answer

Cuverian tubules are found in some species of sea cucumbers and are used as a defense mechanism against predators. When the sea cucumber is threatened, the tubules can be everted through the anus, releasing sticky secretions and toxins to deter the predator.

Some Sea Cucumbers Have Special Tubules of the Respiratory Tree