Which one of following groups of animals is bilaterally symmetrical and triploblastic.
Aschelminthes (round worms)
Ctenophores
Sponges
Coelenterates (Cnidarians)
Phylum Aschelminthes (roundworm) -
Body is circular in cross - section. They are freeliving, aquatic and terristrial or parasitic. Bilateral symmetry, triploblastic and pseudocoelomates.
- wherein
Eg. Ascaris, Wucheria, Ancylostoma.
Option 1)
Aschelminthes (round worms)
This is correct option
Option 2)
Ctenophores
This is incorrect option
Option 3)
Sponges
This is incorrect option
Option 4)
Coelenterates (Cnidarians)
This is incorrect option