CBSE Class 11-science Biology Porifera, Coelenterata, Ctenophora
- phylum annelida silent features
- Bioluminescence is prominent in the phylum * 1 point a) Porifera b) Platyhelminthes c) Ctenophora d) annelida
- Note on sexual reproduction in sponges
- what is hectocotylus arm?
- Name the cells which line the spongocoel in Sycon.
- State any two examples of phylum Coelenterata.
- What type of digestion is seen in the members of phylum Porifera?
- Name the cnidarian which exhibits alteration of generation.
- Define bioluminescence.
- Write the scientific name of the freshwater sponge.
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