Question

Mention the important general characters of urochordata.

Answer 1

The urochordates are the organisms which are called as tunicates. These are the organisms which show certain characteristic features.

• There is a dorsal nerve cord.
  
• There is the presence of notochord.
  
• There is the absence of a tail.
  
• The body is unsegmented.
  
• The feeding is done by the movement of cilia.
  
• There is no coelom observed in the body.
  
• Open type of circulation is seen.
  
• The excretion occurs by the nephrocytes.