Annelida Features
1. Elongated body made up of several ring like annulae/ somites/metameres. 2. Mesoderm lined true coelom is present. 3. Paired segmental nephridia perform excretion. 4. Closed circulatory system. Haemoglobin is present in Plasma. 5. Locomotory organs: Setae or Parapodia. 6. Trochophore larva is found in life cycle. Examples: Tubifex,
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