The derived characteristic of protostome development is found in which of the following phyla?

A. Echinoderms
B. Cnidarians
C. Roundworms
D. Sponges

I’m pretty sure the answer is C ?

Respuesta :

Yea, I think it C as well since I found them in the protostomy category.
The answer you're looking for to the following question is C. Roundworms.