Question

What are difference between setae and parapodi?

Answer 1

locomotive organs are segmentally repeated chitinous bristles called setae
setae are found in annelids
parapodia are used both for respiration and locomotion

Answer 2

Difference between Setae and Parapodi are given below:

Setae:

• Setae, on the other hand, are the segmentally repeated number of various chitinous hair-like structures or bristles of the locomotive organs of living organisms.  
• Setae are usually found in annelids.  
• They help attach worms like earthworm to the surface and avoid backsliding.

Parapodi:

• Parapodia or Parapodi are un-jointed but paired lateral outgrowths which bear the chaetae.  
• Parapodi is either biramous or uniramous.  
• Parapodi is used for both locomotion and respiration in worms like earthworm and tapeworm.