Write the important features of phylum Aschelminthes (Nematoda)

cbse
cbse-class-9-science
diversity-in
living-organisms

#1

Write the important features of phylum Aschelminthes (Nematoda).

Answer:

  • Most of them are small and cylindrical. So they are also called as round worms.
  • The body size ranges from microscopic to a few centimetres in length.
  • They all are mainly heterotrophic animals.
  • They are triploblastic.
  • Body cavity has a true coelom.
  • Respiratory and circulatory systems are absent.
  • They have a complete alimentary canal.
  • Sexes are separate.
    Examples: Ascaris (roundworm), Enterobius, and Wuchereria (filarial worm).