Which of the following groups of animals is bilaterally 40 symmetrical and triploblastic ?
Aschelminthes (roundworms)
ctenophores
sponges
coelenterates (Cnidarians)
Triploblastic -
Animals in which body cells are arranged in three germ layers- ectoderm , mesoderm and endoderm.
- wherein
Eg Platyhelminthes to chordates.