

InterviewSolution
Saved Bookmarks
1. |
Why platyhelmenthes and nematodes possess a false column? |
Answer» <p>Roundworms (Platyhelminthes) havea tough covering of cuticle on the surface of their body. As a result,roundworms havea hydrostatic skeleton. This provides a counterforce for the contraction of muscles lining the pseudocoelom.</p><p>Nematodes do not have completely developed mesodermal linning cavities called coelom. they have cavities that are not formed completely by mesoderm. thus they are not true coelom and are known as pseudocoelom.</p> | |