9. How is the nervous system
of nematodes organized?
Where are the neural chords
located in their body?

Gap-fill exercise

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Roundworms have a nervous
system with anterior neural ring
(evolutionarily) a primitive
.

Nematodes have two longitudinal
ganglial chords extend one dorsally
the other ventrally the
epidermis. There also be nerves
to these main . The
nervous system a free-living
nematode, “ elegans”,
has been -studied in
neurophy siological and
presents 302 .

The nematode “C. ” was the
organism in the research the
genetic regulation organogenesis and
apoptosis researchers won the
prize of Medicine 2002
(Brenner, Horvitz Sulston).