Question

What are ‘Annelida’?

Answer 1

Answer:

body is segmented triploblastic germ layer is present bilateral symmetical body segment are metamare

Answer 2

Answer :

Annelida -

• They are aquatic or terrestrial animal.
• They are free living.
• They may be parasitic sometimes.
• They have organ system level of body organisation.
• They are bilaterally symmetrical.
• They are tripoblastic.
• They are metamerically segmented.
• They are ceolomate.
• They poses longitudinal and circular muscles which help in locomotion.
• The Marine annelids poses lateral appendages called parapodia which help them in swimming.
• They have closed circulatory system.
• The nephridia help in osmoregulation and excretion.
• The neural system of annelids include paired ganglia.
• These are connected to lateral nerves to a double ventral nerve cord.
• They are dioceious or monoceious.
• They reproduce sexually.
• Ex : Pheretima, Nereis, etc.