Whereas flukes are flattened and generally leaf-shaped, adult tapeworms are flattened, elongated, and consist of segments called proglottids. ... The scolex contains the cephalic ganglion, or “brain,” of the tapeworm nervous system. Externally, the scolex is characterized by holdfast organs.

Do trematodes have a scolex?

Each of these segments contains both male and female reproductive organs that allow them to self-fertilize. While cestodes are capable of self-fertilization, like trematodes, trematodes do not have segmented bodies attached to a scolex.

Do flatworms have a Coelom?

Flatworms are bilaterally symmetrical with a defined head and tail region and a centralized nervous system containing a brain and nerve cords. ... They have no circulatory system or body cavity (coelom), but they do have an excretory and digestive system.