2019 · Q51
Which of the following organisms belongs to Coelenterata (Cnidaria)?
general-sciencebiology-human-body
- APlanaria and liverfluke
- BSea urchin and sea cucumber
- CHydra and sea anemone
- DEuplectella and sycon
Explanation
Hydra and the sea anemone are cnidarians (Coelenterata), characterised by stinging cnidocytes. Planaria and liverfluke are Platyhelminthes, sea urchin and sea cucumber are Echinoderms, and Euplectella and sycon are Poriferans (sponges). Hence C.