You find a wormlike animal while scuba diving and want to determine whether it is a nudibranch,a polychaete,or a turbellarian.Which of the following would allow you to definitively classify the organism into one of those categories?

Question

Quizplus · Accepted Answer

Bristle-like structures on tiny appendages are a characteristic feature of polychaetes, which separate them from nudibranchs and turbellarians. The ability to swim, bright coloration, and sexual reproduction are not definitive characteristics to classify the organism into one of those categories. A coelom is a body cavity that is found in many animals, including all three categories mentioned in the question, and thus, it cannot be used alone to definitively classify the organism.

You Find a Wormlike Animal While Scuba Diving and Want