Question

Roundworms have mechanoreceptors called _____ on external bristles.

Answer 1

Setae is the right answer

Answer 2

In the sentence "Roundworms have mechanoreceptors called _____ on external bristles", the word that correctly completes the sentence is B. setae. Roundworms or nematodes are a diverse animal phylum. The main sense organs of roundowrms are setae, papillae, and amphids. They use setae as mechanoreceptors to detect motion.