The Sipunculans live in burrows and feed on sediment deposits using
A)a non-retractile spoon-shaped proboscis.
B)a chitinous cuticle.
C)a segmented opisthosoma.
D)a retractile introvert with ciliated tentacles.
E)None of the choices is correct.

Question

Quizplus · Accepted Answer

Sipunculans are known for their retractile introvert with ciliated tentacles that they use to capture their food. This introvert can be extended and retracted as needed, and when not in use, it is typically hidden inside a specialized body cavity. The other choices, including a non-retractile spoon-shaped proboscis, are not features of sipunculans.

The Sipunculans Live in Burrows and Feed on Sediment Deposits