NEETBotanyAnimal Kingdom
What type of neural system do annelids have?
Options
- Apaired ganglia connected by lateral nerves to a double ventral nerve cord
- Bsimple brain
- Cno neural system
- Dboth A) and B)
Correct answer
A. paired ganglia connected by lateral nerves to a double ventral nerve cord
Step-by-step solution
They may be aquatic (marine and fresh water) or terrestrial; free-living, and sometimes parasitic. They exhibit organ-system level of body organisation and bilateral symmetry. They are triploblastic, metamerically segmented and coelomate animals. Their body surface is distinctly marked out into segments or metameres and, hence, the phylum name Annelida (Latin, annulus : little ring). A closed circulatory system is present. Nephridia (sing. nephridium) help in osmoregulation and excretion.Reproduction is sexual.Anne