Hello Student ,

Important Points to remember from phylum Ctenophora :

• Biradially symmetrical
• Diploblastic
• Tissue level of organisation
• Also known as Sea walnuts or comb jellies
• Body has 8 external rows of ciliated comb plates which help in locomotion
• Only Sexual reproduction is seen
• Monoecious
• Power of regeneration present
• Bioluminescence is seen
• Eg - PhysaliaAdamsis and Pennatula.